diff --git a/Documentation/cmd-hook-commit-msg.txt b/Documentation/cmd-hook-commit-msg.txt
index 39cb3a5..bd602c1 100644
--- a/Documentation/cmd-hook-commit-msg.txt
+++ b/Documentation/cmd-hook-commit-msg.txt
@@ -73,6 +73,12 @@
   $ curl -o ~/duhproject/.git/hooks/commit-msg http://review.example.com/tools/hooks/commit-msg
 ====
 
+Make sure the hook file is executable:
+
+====
+  $ chmod u+x ~/duhproject/.git/hooks/commit-msg
+====
+
 SEE ALSO
 --------
 
diff --git a/gerrit-cache-h2/src/main/java/com/google/gerrit/server/cache/h2/H2CacheImpl.java b/gerrit-cache-h2/src/main/java/com/google/gerrit/server/cache/h2/H2CacheImpl.java
index ad437b7..a5bdacc 100644
--- a/gerrit-cache-h2/src/main/java/com/google/gerrit/server/cache/h2/H2CacheImpl.java
+++ b/gerrit-cache-h2/src/main/java/com/google/gerrit/server/cache/h2/H2CacheImpl.java
@@ -270,6 +270,8 @@
 
     Funnel<K> funnel() {
       return new Funnel<K>() {
+        private static final long serialVersionUID = 1L;
+
         @Override
         public void funnel(K from, PrimitiveSink into) {
           try {
diff --git a/gerrit-gwtui/src/main/java/com/google/gerrit/client/changes/CommitMessageBlock.java b/gerrit-gwtui/src/main/java/com/google/gerrit/client/changes/CommitMessageBlock.java
index 6a364e0..eff3cd5 100644
--- a/gerrit-gwtui/src/main/java/com/google/gerrit/client/changes/CommitMessageBlock.java
+++ b/gerrit-gwtui/src/main/java/com/google/gerrit/client/changes/CommitMessageBlock.java
@@ -104,6 +104,8 @@
       SafeHtml commitBodyLinkified = new SafeHtmlBuilder().append(commitBody);
       commitBodyLinkified = commitBodyLinkified.linkify();
       commitBodyLinkified = CommentLinkProcessor.apply(commitBodyLinkified);
+      commitBodyLinkified = commitBodyLinkified.replaceAll("\n\n", "<p></p>");
+      commitBodyLinkified = commitBodyLinkified.replaceAll("\n", "<br />");
       commitBodyPre.setInnerHTML(commitBodyLinkified.asString());
     }
   }
diff --git a/gerrit-gwtui/src/main/java/com/google/gerrit/client/changes/CommitMessageBlock.ui.xml b/gerrit-gwtui/src/main/java/com/google/gerrit/client/changes/CommitMessageBlock.ui.xml
index 16d1da5..ca81537 100644
--- a/gerrit-gwtui/src/main/java/com/google/gerrit/client/changes/CommitMessageBlock.ui.xml
+++ b/gerrit-gwtui/src/main/java/com/google/gerrit/client/changes/CommitMessageBlock.ui.xml
@@ -59,8 +59,8 @@
       font-weight: bold;
     }
 
-    .commitBody {
-      margin-top: 10px;
+    .commitBody p {
+      padding-top: 0px;
     }
 
     .starPanel {
diff --git a/gerrit-server/src/main/java/gerrit/PRED__load_commit_labels_1.java b/gerrit-server/src/main/java/gerrit/PRED__load_commit_labels_1.java
index a0bb820..a26a492 100644
--- a/gerrit-server/src/main/java/gerrit/PRED__load_commit_labels_1.java
+++ b/gerrit-server/src/main/java/gerrit/PRED__load_commit_labels_1.java
@@ -26,8 +26,6 @@
 
 /** Exports list of {@code commit_label( label('Code-Review', 2), user(12345789) )}. */
 class PRED__load_commit_labels_1 extends Predicate.P1 {
-  private static final long serialVersionUID = 1L;
-
   private static final SymbolTerm sym_commit_label = SymbolTerm.intern("commit_label", 2);
   private static final SymbolTerm sym_label = SymbolTerm.intern("label", 2);
   private static final SymbolTerm sym_user = SymbolTerm.intern("user", 1);
diff --git a/gerrit-server/src/main/java/gerrit/PRED__user_label_range_4.java b/gerrit-server/src/main/java/gerrit/PRED__user_label_range_4.java
index 68f9bf6..a955307 100644
--- a/gerrit-server/src/main/java/gerrit/PRED__user_label_range_4.java
+++ b/gerrit-server/src/main/java/gerrit/PRED__user_label_range_4.java
@@ -38,8 +38,6 @@
  * </pre>
  */
 class PRED__user_label_range_4 extends Predicate.P4 {
-  private static final long serialVersionUID = 1L;
-
   PRED__user_label_range_4(Term a1, Term a2, Term a3, Term a4, Operation n) {
     arg1 = a1;
     arg2 = a2;
diff --git a/gerrit-server/src/main/java/gerrit/PRED_change_branch_1.java b/gerrit-server/src/main/java/gerrit/PRED_change_branch_1.java
index 7cc9f35..51396ed 100644
--- a/gerrit-server/src/main/java/gerrit/PRED_change_branch_1.java
+++ b/gerrit-server/src/main/java/gerrit/PRED_change_branch_1.java
@@ -26,8 +26,6 @@
 import com.googlecode.prolog_cafe.lang.Term;
 
 public class PRED_change_branch_1 extends Predicate.P1 {
-  private static final long serialVersionUID = 1L;
-
   public PRED_change_branch_1(Term a1, Operation n) {
     arg1 = a1;
     cont = n;
diff --git a/gerrit-server/src/main/java/gerrit/PRED_change_owner_1.java b/gerrit-server/src/main/java/gerrit/PRED_change_owner_1.java
index 09be902..b127fff 100644
--- a/gerrit-server/src/main/java/gerrit/PRED_change_owner_1.java
+++ b/gerrit-server/src/main/java/gerrit/PRED_change_owner_1.java
@@ -28,7 +28,6 @@
 import com.googlecode.prolog_cafe.lang.Term;
 
 public class PRED_change_owner_1 extends Predicate.P1 {
-  private static final long serialVersionUID = 1L;
   private static final SymbolTerm user = SymbolTerm.intern("user", 1);
 
   public PRED_change_owner_1(Term a1, Operation n) {
diff --git a/gerrit-server/src/main/java/gerrit/PRED_change_project_1.java b/gerrit-server/src/main/java/gerrit/PRED_change_project_1.java
index d1cd20d..fb9f865 100644
--- a/gerrit-server/src/main/java/gerrit/PRED_change_project_1.java
+++ b/gerrit-server/src/main/java/gerrit/PRED_change_project_1.java
@@ -26,8 +26,6 @@
 import com.googlecode.prolog_cafe.lang.Term;
 
 public class PRED_change_project_1 extends Predicate.P1 {
-  private static final long serialVersionUID = 1L;
-
   public PRED_change_project_1(Term a1, Operation n) {
     arg1 = a1;
     cont = n;
diff --git a/gerrit-server/src/main/java/gerrit/PRED_change_topic_1.java b/gerrit-server/src/main/java/gerrit/PRED_change_topic_1.java
index d200f7e..34885f9 100644
--- a/gerrit-server/src/main/java/gerrit/PRED_change_topic_1.java
+++ b/gerrit-server/src/main/java/gerrit/PRED_change_topic_1.java
@@ -25,8 +25,6 @@
 import com.googlecode.prolog_cafe.lang.Term;
 
 public class PRED_change_topic_1 extends Predicate.P1 {
-  private static final long serialVersionUID = 1L;
-
   public PRED_change_topic_1(Term a1, Operation n) {
     arg1 = a1;
     cont = n;
diff --git a/gerrit-server/src/main/java/gerrit/PRED_commit_author_3.java b/gerrit-server/src/main/java/gerrit/PRED_commit_author_3.java
index a0817a1..3700909 100644
--- a/gerrit-server/src/main/java/gerrit/PRED_commit_author_3.java
+++ b/gerrit-server/src/main/java/gerrit/PRED_commit_author_3.java
@@ -24,8 +24,6 @@
 import com.googlecode.prolog_cafe.lang.Term;
 
 public class PRED_commit_author_3 extends AbstractCommitUserIdentityPredicate {
-  private static final long serialVersionUID = 1L;
-
   public PRED_commit_author_3(Term a1, Term a2, Term a3, Operation n) {
     super(a1, a2, a3, n);
   }
diff --git a/gerrit-server/src/main/java/gerrit/PRED_commit_committer_3.java b/gerrit-server/src/main/java/gerrit/PRED_commit_committer_3.java
index 78e6cf7..64823df 100644
--- a/gerrit-server/src/main/java/gerrit/PRED_commit_committer_3.java
+++ b/gerrit-server/src/main/java/gerrit/PRED_commit_committer_3.java
@@ -24,8 +24,6 @@
 import com.googlecode.prolog_cafe.lang.Term;
 
 public class PRED_commit_committer_3 extends AbstractCommitUserIdentityPredicate {
-  private static final long serialVersionUID = 1L;
-
   public PRED_commit_committer_3(Term a1, Term a2, Term a3, Operation n) {
     super(a1, a2, a3, n);
   }
diff --git a/gerrit-server/src/main/java/gerrit/PRED_commit_delta_4.java b/gerrit-server/src/main/java/gerrit/PRED_commit_delta_4.java
index 045297b..9ce7098 100644
--- a/gerrit-server/src/main/java/gerrit/PRED_commit_delta_4.java
+++ b/gerrit-server/src/main/java/gerrit/PRED_commit_delta_4.java
@@ -43,7 +43,6 @@
  * </pre>
  */
 public class PRED_commit_delta_4 extends Predicate.P4 {
-  private static final long serialVersionUID = 1L;
   private static final SymbolTerm add = SymbolTerm.intern("add");
   private static final SymbolTerm modify = SymbolTerm.intern("modify");
   private static final SymbolTerm delete = SymbolTerm.intern("delete");
diff --git a/gerrit-server/src/main/java/gerrit/PRED_commit_edits_2.java b/gerrit-server/src/main/java/gerrit/PRED_commit_edits_2.java
index f0accf0..2c7949c 100644
--- a/gerrit-server/src/main/java/gerrit/PRED_commit_edits_2.java
+++ b/gerrit-server/src/main/java/gerrit/PRED_commit_edits_2.java
@@ -54,8 +54,6 @@
  * </pre>
  */
 public class PRED_commit_edits_2 extends Predicate.P2 {
-  private static final long serialVersionUID = 1L;
-
   public PRED_commit_edits_2(Term a1, Term a2, Operation n) {
     arg1 = a1;
     arg2 = a2;
diff --git a/gerrit-server/src/main/java/gerrit/PRED_commit_message_1.java b/gerrit-server/src/main/java/gerrit/PRED_commit_message_1.java
index 0ed7443..e2eb6b1 100644
--- a/gerrit-server/src/main/java/gerrit/PRED_commit_message_1.java
+++ b/gerrit-server/src/main/java/gerrit/PRED_commit_message_1.java
@@ -32,8 +32,6 @@
  * </pre>
  */
 public class PRED_commit_message_1 extends Predicate.P1 {
-  private static final long serialVersionUID = 1L;
-
   public PRED_commit_message_1(Term a1, Operation n) {
     arg1 = a1;
     cont = n;
diff --git a/gerrit-server/src/main/java/gerrit/PRED_current_user_1.java b/gerrit-server/src/main/java/gerrit/PRED_current_user_1.java
index 8c70cad..09a46f7 100644
--- a/gerrit-server/src/main/java/gerrit/PRED_current_user_1.java
+++ b/gerrit-server/src/main/java/gerrit/PRED_current_user_1.java
@@ -33,7 +33,6 @@
 import com.googlecode.prolog_cafe.lang.Term;
 
 public class PRED_current_user_1 extends Predicate.P1 {
-  private static final long serialVersionUID = 1L;
   private static final SymbolTerm user = SymbolTerm.intern("user", 1);
   private static final SymbolTerm anonymous = SymbolTerm.intern("anonymous");
   private static final SymbolTerm peerDaemon = SymbolTerm.intern("peer_daemon");
diff --git a/gerrit-server/src/main/java/gerrit/PRED_current_user_2.java b/gerrit-server/src/main/java/gerrit/PRED_current_user_2.java
index 1359de1..3f4b656 100644
--- a/gerrit-server/src/main/java/gerrit/PRED_current_user_2.java
+++ b/gerrit-server/src/main/java/gerrit/PRED_current_user_2.java
@@ -49,7 +49,6 @@
  * </pre>
  */
 class PRED_current_user_2 extends Predicate.P2 {
-  private static final long serialVersionUID = 1L;
   private static final SymbolTerm user = intern("user", 1);
   private static final SymbolTerm anonymous = intern("anonymous");
 
diff --git a/gerrit-server/src/main/java/gerrit/PRED_get_legacy_approval_types_1.java b/gerrit-server/src/main/java/gerrit/PRED_get_legacy_approval_types_1.java
index 9399865..cbe0fd8 100644
--- a/gerrit-server/src/main/java/gerrit/PRED_get_legacy_approval_types_1.java
+++ b/gerrit-server/src/main/java/gerrit/PRED_get_legacy_approval_types_1.java
@@ -43,8 +43,6 @@
  * </ul>
  */
 class PRED_get_legacy_approval_types_1 extends Predicate.P1 {
-  private static final long serialVersionUID = 1L;
-
   PRED_get_legacy_approval_types_1(Term a1, Operation n) {
     arg1 = a1;
     cont = n;