removed deps on com.google.guava

they are implied by xtext bundles

Change-Id: I516aae424c4ba9cf72acfb37e04f1dc2e54138ef
create the example zips during the build

Change-Id: I5deb8de107636b9efff364e2b71468b1e236d802
run mwe2 during the build

to generate Xtext DSLs artifacts

Change-Id: I540953eb7a984fcabe77261fc9b7dd03a80e2c7f
removed src-gen from repository
ignore src-gen folders

Change-Id: Id569dfed2a32f387acb70f77d7c1176dac6202f0
run mwe2 during the workspace materialization

for contributors

Change-Id: Ia58bb13cd15cb665a9a1efac09c184447ab836e8