#510 added resource and tidied up docs
[#252] Removed all xml:lang attributes except default from XML
[#252] Updated language tag check
[#252] Remove correct child nodes
[#252] Removed unnecessary child.getparent() call
#510 addition of remaining custom resources
[#141] Preliminary commit
[#141] Primary location checkbox removed from admin
[#252] Merge branch 'develop' into feature/252_multiple_lang_tags
#510 fixed links for wrong branch
Merge pull request #514 from akvo/feature/510-api-docs

[#510] added resource and tidied up docs
[#620] Added keyword models and admin entries
[#260] Added keyword filter logic to partner sites and widgets
[#260] Cleanup code on several places
[#620] Removed ProjectKeyword and PartnerSiteKeyword models
[#620] DRY up project selection code
[#620] Added keyword column and filters to admin
[#647] Fix for partnersites update edits
[#649] Changed iTouchMap.com into http://mygeoposition.com/
Merge pull request #650 from akvo/feature/649_geo_admin_text

[#649] Changed iTouchMap.com into http://mygeoposition.com/