Merge branch 'stable-2.15'

* stable-2.15:
  Add bin/ to .gitignore
  Remove unused imports
  Remove unused imports

Change-Id: If16136224fea2f41ad1c1c3437e1f7c9a7eba677
diff --git a/.gitignore b/.gitignore
index da453c5..1c8903f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,4 +5,4 @@
 .project
 /.settings/org.maven.ide.eclipse.prefs
 /.settings/org.eclipse.m2e.core.prefs
-
+bin/