bug fixes in copytask.py
Now delete task can receive an string or array of paths to delete.
execProg2 in utils.py module now can receive encoding.
incrementversiontask.py now can use the svnRevision, by default the useSvnBuild is True, o use just add in the final of the calling:
IncrementVersionTask(assemblyPath, type, projectRoot='<put the project code that have the svn>')
Merge branch 'master' of https://github.com/gilmarsquinelato/pyhammer into gilmarsquinelato-master

Conflicts:
	pyhammer/tasks/io/copytask.py