Subversion: do NOT listen to wc.db changes - if -Dsvn.do.not.listen.to.wc.db=true
needed to check assumption that checksum mismatch problem occurs if writing transaction receives BUSY exception during commit (this is phase-of-the-moon *bug* in svnkit)

IDEA-97081 OSX / svn commit failed - Base checksum mismatch
IDEA-100494 Cannot make a SVN commit via Intellij
IDEA-98435 Can not commit to SVN
Merge remote branch 'origin/master'
SupportForFrameworksStep leaking fixed