[417188] Ensure SelectionSynchronizer only selects selectable EditParts.
[418315] Adopt target to Luna M2.
[NONE] Update to tycho 0.17.0.
[NONE] Update to Tycho 0.18.1.
[418315] Add profile for Luna target to parent pom.
[418350] Reexport org.eclipse.core.runtime to fix error in IDE

Also fix two typos around the line where the error occured
[NONE] Update tycho to 0.18.1.
[394137] Add missing link to Zest 1.x snippets.
Merge branch 'R3_9_maintenance'