Prepare for 4.0.0-rc1
Adds eclipse platform in IDE build UID

It is required to be able to use the cache and make a difference
between builds for kepler and luna
Downgrade to 0.13.5 for PR-validations sake.
Merge pull request #62 from dragos/master

Downgrade to 0.13.5 for PR-validations sake.
Merge pull request #60 from skyluc/pretag/4.0.0-rc1

Pretag/4.0.0 rc1