Modify field data kwarg name

It's a misnomer for a client helper to receive a parameter called a
"name" have have a 2-tuple or 3-tuple of something normally only
handled internally.
Simplify imports
Replace old use of mimetype kwarg
Add XEditableDatatableView
Update gitignore
Merge from master
Merge branch 'master' of https://github.com/pivotal-energy-solutions/django-datatable-view into xeditable
Remove old commented block
Misc: whitespace
Misc
Flatten code branch
Add error for compound columns
Remove old debug line
Add native field types and choices support
Add basic select2 support
Allow kwargs to be specified with leading data_ prefix
Add README information for xeditable features

/cc #16
Merge branch 'xeditable' of https://github.com/pivotal-energy-solutions/django-datatable-view