Add module docstring and license for soc, soc.models, soc.views.helper.templatetags. Patch by: Pawel Solyga

Remove python-graph from thirdparty, remove check_includes script and graph folder from scripts. This functionality is (cyclic imports check) is supported by pylint automatically so we don't need that any more. Patch by: Pawel Solyga Review by: Sverre Rabbelier

Fix too long lines in soc.views.models.request, remove unused imports and change pending requests list description. Remove unused imports from soc.logic.path_link_name module. Patch by: Pawel Solyga

Add missing dots in soc.logic.lists module. Change method names to comply with Style Guide. Make class variable protected by adding "_" to the name of variable. Update lists templates respectively (methods name change). Patch by: Pawel Solyga

Remove unused imports in soc.views.models role, host and site modules. Add missing parameter in getDjangoURLPatters method. Patch by: Pawel Solyga

Remove unused imports in soc.views.models.user and soc.views.models.sponsor modules. Patch by: Pawel Solyga

Remove unused import in soc.models.task. Patch by: Pawel Solyga