Added config parameter for ignoring paths

Inside the config.xml there will be entries for ignored paths.
Every synchronized repository could contain a new xml element
describing an ignored folder like this:
...
<folder>
	...
	<ignoredFolder path="path/to/temp" />
	<ignoredFolder path="path/to/trash" />
	...
</folder>
...

This xml element is optional, so compatibility with old configs
is ensured.

The check, if a folder is ignored is not active at the moment. It
has to be evaluated, before enabling the checks for productivity.
Implemented ignoring folder finished
Merge remote-tracking branch 'upstream/master'
Add some exception handle on test side
Enhance the dispose pattern to erase Gendarme defects
Removed Object ID information from setup dialog

The Object ID is confusing and not helpful for enduser.
So it is removed from the folder selection dialog in the
setup dialog.
Changed color of play/pause to GRAU DATA AG colors
Added a GRAU DATA banner to installer
Merge branch 'feature/InstallerModification'
Rescaled the banner for better visibility
Merge branch 'feature/InstallerModification'
German translation fixed
Apply dispose pattern and erase Gendarme defects
Update CmisSync.Lib/StaticDefines.cs
Erase Gendarme defects
Fix Gendarme defects
Fix Gendarme defects for Windows
Changed installer icon to cmissync-app icon
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'nicolas/master'