MetaCG v0.2.1

Changelog

CGCollector

Fixes non-termination issue in CGCollector for some cases
Fixes crashes for certain ways of recursion

PGIS

Fixes an error that prohibited PIRA I from producing any reasonable results.
Adds FindSynchronizationPoint mechanism to PGIS and its LI detection.
Makes the export of the CG as dot file a CLI switch in PGIS
Makes call-site instrumentation optional