Patch for preliminary Mercurial integration in kdevplatform

[David Nolden]

Actually, I think it would be useful always showing both in the menu. The 
abstract VCS-independent action, like for example "Difference to committed", 
and behind it the specific VCS command to achieve this goal. This way, newbies 
have simple names, learn using the underlying VCS a little, can search the web 
for help using the right terms, and experienced users can pick the items based 
on the VCS-specific description.

So the different menus could look like:
Show Changes (git diff ...)
Commit Changes (git commit ...)
Switch to Branch (git checkout ...)
Show History (git log ...)

etc. It should not show the full command, just an abstract of the vcs-specific 
actions. Yes, the menu might become a bit large.