Rename blame-cache lib target to 'blame-cache'

The name is currently 'lib' which results in 'liblib.jar' being
generated.

Change it so the generated file is 'libblame-cache' which is more
meaningful.

Change-Id: I5f735b0b85592b883a14dadbb0c63be7f8014fe4
diff --git a/blame-cache/BUILD b/blame-cache/BUILD
index 024399d..860198a 100644
--- a/blame-cache/BUILD
+++ b/blame-cache/BUILD
@@ -6,7 +6,7 @@
 ]
 
 java_library(
-    name = "lib",
+    name = "blame-cache",
     srcs = SRCS,
     visibility = ["//visibility:public"],
     deps = DEPS,
@@ -17,7 +17,7 @@
 java_doc(
     name = "javadoc",
     libs = [
-        ":lib",
+        ":blame-cache",
         "//lib:guava",
         "//lib/jgit:jgit",
     ],
diff --git a/gitiles-servlet/BUILD b/gitiles-servlet/BUILD
index 127608b..aeb013d 100644
--- a/gitiles-servlet/BUILD
+++ b/gitiles-servlet/BUILD
@@ -4,7 +4,7 @@
 )
 
 DEPS = [
-    "//blame-cache:lib",
+    "//blame-cache:blame-cache",
     "//lib:autolink",
     "//lib:commons-lang",
     "//lib:gson",
diff --git a/tools/maven/BUILD b/tools/maven/BUILD
index defb13a..5efc003 100644
--- a/tools/maven/BUILD
+++ b/tools/maven/BUILD
@@ -3,7 +3,7 @@
 
 maven_package(
     src = {
-        "blame-cache": "//blame-cache:liblib-src.jar",
+        "blame-cache": "//blame-cache:libblame-cache-src.jar",
         "gitiles-servlet": "//gitiles-servlet:libservlet-src.jar",
     },
     doc = {
@@ -12,7 +12,7 @@
     },
     group = "com.google.gitiles",
     jar = {
-        "blame-cache": "//blame-cache:lib",
+        "blame-cache": "//blame-cache:blame-cache",
         "gitiles-servlet": "//gitiles-servlet:servlet",
     },
     repository = "gerrit-maven-repository",