CCE
Merge remote-tracking branch 'origin/master'
identify command from WorkingCopy changed to local
HgCommandExecutor refactoring

* finally block added to stop appropriate socket server in any cases;
* warnings deleted fromHgCommandResult and from PromptCommandExecutor and now considered as non-fatal errors;
* message title changed in PromptCommandExecutor;
* prompthooks extension arguments creation moved to a separate method;
* log command method overrided for remote command execution to not provide password socket information outside
IDEA-88175 (wrong inspection Contents of collection 'x' are updated, but never queried)
doesn't show empty langs in postfix completion tree