added payment related models and profile template
updated payment models
added profile models
added django pgjson
added profile editing with markdown
showing list of grants in profile
added csrf exempt mixin
added status field to membership model
name raw details nullable
added payment and membership views
added membership templates
added membership and payment admins
added first/last name to profile editing
using profile from context, behavior is link now
Merge pull request #32 from pythonindia/userprofile

Added user profile and payment models and views