Update build to use Tycho 0.7.0
Update build to use Tycho 0.7.0

Change-Id: I10379c4f664079718579c0f580a324f0d9917868
Signed-off-by: Matthias Sohn <446760a3fbea85cd5f8f4f5c3de304fe3a38014f@sap.com>

paulvi/egit,rickard-von-essen/egit,jdcasey/EGit,wdliu/egit,chalstrick/egit,jdcasey/EGit,blizzy78/egit,spearce/egit,spearce/egit,bols-blue/eclipse_maven_autobuild_sample,collaborative-modeling/egit,mdoninger/egit,SmithAndr/egit,rickard-von-essen/egit,collaborative-modeling/egit,SmithAndr/egit,paulvi/egit,bols-blue/eclipse_maven_autobuild_sample,wdliu/egit