Implement IVersionControl::vcsAdd() using --intent-to-add with a cached
version check. On this occasion, implement vcsDelete() as well using
'git rm -f'.

Reviewed-by: dt

SetupData triggers all kind of updates, most notable restarting the
content, index widget and full text search indexer threads which might
hurt startup performance.

Reviewed-by: ck

Instigated-by: hjk

This is a confusing function and not needed anymore.

Reviewed-by: dt

"unreadable" memory

missing

Task-number: QTCREATORBUG-66
Merge-request: 107
Reviewed-by: Thorbjørn Lindeijer <thorbjorn.lindeijer@nokia.com>

Done with: Thorbjorn.

 * Looks like some version of creator does use lowercase
   keys:-/

Show the state in the combo boxes instead.

See BAUHAUS-328

foreach()-Loops.