Bug 431100 - Remove source feature and let tycho autogenerate it

Remove hand written source featureand let tycho generate it.
In order to simplify changes site's packaging type is changed from the
deprecated eclipse-update-site to the supported eclipse-repository and
assembly.xml is changed to adopt to it.


Change-Id: I4e856f22a2ba7f4f477e468d560da21cd2fbc9ec
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
16 files changed