Merge branch 'stable-4.3'

* stable-4.3:
  Prepare 4.3.1-SNAPSHOT builds
  EGit Mylyn Github Connector v4.3.0.201604071810-r
  EGit Mylyn Github Connector v4.3.0.201604071045-r
  Prepare 4.3.0-SNAPSHOT builds
  EGit Mylyn Github Connector v4.3.0.201603230630-rc1

Change-Id: I01c28aca25723e4281ecbb7bce03c9204d67dec6
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>