Merge branch 'stable-4.5'

* stable-4.5:
  Prepare 4.5.1-SNAPSHOT builds
  EGit Mylyn Github Connector v4.5.0.201609210915-r

Change-Id: Iaaa891384f199d15db94fb2f00bed185504eb549
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>