Code optimization in participation views.py
Merge branch 'refactoring' of github.com:nemesisdesign/nodeshot
Fixed bug in coordinate distance control + minor change in nodes serializers
Merge branch 'refactoring' of github.com:nemesisdesign/nodeshot

Conflicts:
	nodeshot/community/participation/views.py
 Added comment on participation views.py
 Added comment on participation views.py
Test on comment GET API
Improved and simplified geographic tests on nodes
Nodes fixture with updated coords
Added participation control setting on API
API checks layer and node participation settings for comments
Clean method commented on participation models
Merge branch 'master' of github.com:stonaz/nodeshot
Cleaned code in views.py
Merge branch 'master' of github.com:stonaz/nodeshot into refactoring
CustomDataMixin to solve participation comment validation problem
profile views permission denied messages in special cases