http://ea.jetbrains.com/browser/ea_problems/51445
[log] Don't load the log on startup: wait until user opens it

* Make VcsLogManager a service instead of component.
* Introduce VcsLogContentProvider implementing the ChangesView EP
  which initializes the component only when it is selected for the
  first time.
Cleanup (typos)
optimization: for OptimizedFilemanager classes always use directory cache and clear affected cache entries on new files generation
Terminal shortcut conflicts with } symbol on French keyboard. Now it is Alt+F12 (PY-11011).
Merge remote-tracking branch 'origin/master'
continue WEB-6413 sourcemap backed breakpoints do not work until page is loaded
Merge remote-tracking branch 'origin/master'