Add low level shell support in chroot for sftp and remove force sftp ssh directive.
fix sftp config update bug where share changes overwrite service on-off change.
update sftp view to support rsync over ssh.
Fix snapshot visibility(name truncated to the string after _) where name has _ character.
Remove logging typo in replication view.
improve error message when bootstrapping mounts fails.
Changes for horizontal form and tooltip placement
Add support for snapshot (readonly)visibility under sftp shares.
Implement snapshot visibility toggling for sftp in the snapshot api.
update bootstrap to mount visible snapshots for sftp.
Use chosen for sftp share selection
Use radio button for access type
Set readonly value if readonly selected, otherwise delete it
Merge pull request #454 from schakrava/issue#394_sftp

Issue#394 sftp
oauth2 for api authentication
Freeze some package versions and update django-hack
Merge branch 'oauth2' of git://github.com/sujeetsr/rockstor-core into sujeetsr-oauth2

Conflicts:
	setup.py
update readme with product overview
Django and backbone view and template for access keys
Merge branch 'oauth2' of github.com:sujeetsr/rockstor-core into oauth2