1. Refactored get_cv_local method to use python with keyword.  2.  Added helper function to wrap lxml.Element.xpath function.
Refactored so as to overcome potential memory issues caused by usage of lxml smart_strings
Refactored to use custom _xpath function that use smart_strings=False flag
Merge branch 'devel'

Conflicts:
	CIM_Questionnaire/django_cim_forms/controlled_vocabulary.py
added git configuration files
upaded use of lxml
added script to cope w/ known postgres / djang issues
added support for vocabularies used by multiple projects
tweaked view to better handle CVs for multiple projects
updated CVs included w/ distribution
removed local db info from settings
adding v0.10.1.0 distribution
fixed issue w/ specifying parameters in url
updated serializer for django 1.6 compatibility
Merge branch 'statistical'
added additional checks for parameters passed into GET
added v0.10.1.1 distribution
updated setup.py w/ new version info
added backups directory
updated serializer to work w/ django v1.6