Fix build

* Build against https://download.eclipse.org/eclipse/updates/I-builds/
* Use Tycho 2.3.0 as snapshots are gone now.

Change-Id: I35024e354e673af0c78202cbf3aefec62cdb1d30
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
2 files changed