Correct URL to apache license in CSS headers

A bad global search-replace in the header text lead to
this particular damage, which copy-and-paste later put
in more than one file.

Change-Id: Id0cabb1c83935aa820e70cb4f951b8611057afef
Signed-off-by: Shawn O. Pearce <sop@google.com>
diff --git a/src/main/java/com/google/gwtexpui/clippy/client/clippy.css b/src/main/java/com/google/gwtexpui/clippy/client/clippy.css
index 3cf7b90..6cbd7f6 100644
--- a/src/main/java/com/google/gwtexpui/clippy/client/clippy.css
+++ b/src/main/java/com/google/gwtexpui/clippy/client/clippy.css
@@ -4,7 +4,7 @@
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- * http: *www.apache.org/licenses/LICENSE-2.0
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
diff --git a/src/main/java/com/google/gwtexpui/globalkey/client/key.css b/src/main/java/com/google/gwtexpui/globalkey/client/key.css
index f3fd445..9372e45 100644
--- a/src/main/java/com/google/gwtexpui/globalkey/client/key.css
+++ b/src/main/java/com/google/gwtexpui/globalkey/client/key.css
@@ -4,7 +4,7 @@
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- * http: *www.apache.org/licenses/LICENSE-2.0
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
diff --git a/src/main/java/com/google/gwtexpui/progress/client/progress.css b/src/main/java/com/google/gwtexpui/progress/client/progress.css
index a0c15a0..683396e 100644
--- a/src/main/java/com/google/gwtexpui/progress/client/progress.css
+++ b/src/main/java/com/google/gwtexpui/progress/client/progress.css
@@ -4,7 +4,7 @@
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- * http: *www.apache.org/licenses/LICENSE-2.0
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
diff --git a/src/main/java/com/google/gwtexpui/safehtml/client/safehtml.css b/src/main/java/com/google/gwtexpui/safehtml/client/safehtml.css
index f612200..fcad92c 100644
--- a/src/main/java/com/google/gwtexpui/safehtml/client/safehtml.css
+++ b/src/main/java/com/google/gwtexpui/safehtml/client/safehtml.css
@@ -4,7 +4,7 @@
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- * http: *www.apache.org/licenses/LICENSE-2.0
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,