Manifests cleanup.

* Move away of deprecated Eclipse-LazyStart.
* Add BREE to manifests.
* Update project properties to rely on BREE.

Change-Id: I00a4e6ed4b5281cb24c5b258ef90256d5616ae0c
Merge branch 'manifest_cleanup' of https://github.com/akurtakov/Pydev into akurtakov-manifest_cleanup
Merging Manifests cleanup.