Email info parsing fixed

*test added
(IDEA-116490) remove --debug argument if hg supports parents template variables

*hg log command refactored;
*appropriate supported version added to HgVersion;
*construct hashes argument modified for new log
don't get compiled file text to diagnose stub-psi mismatch
code simplification
EA-52123 (IAE: InvertBooleanHandler.invoke)
VcsRootDetector tests temporary fix

*.mock file must be not deleted from previous test version
*should be changed