PluginImpl was removed

That class is not really needed and was originally added just for test purposes.
So it's time to remove it.
com.dd.plist was added as a plist parser for mobileprovision

It's better to use proper parser to parse mobileprovision parameters.
Some details about parser which was chosen might be found here: http://code.google.com/p/plist/
It also supports bplist (has not been tested yet) so that parser might be used to parse Info.plist.