Modify the admin users field with dropdown existing users in samba export field.
Add sorting for functionality to the fields in add pool form.
Fix pool name validation missing code.
Merge branch 'issue#481_modify_adminusers_smb_export' of git://github.com/Mchakravartula/rockstor-core into Mchakravartula-issue#481_modify_adminusers_smb_export
Change admin users drop box in add samba export page

Fixes #481
Merge branch 'issue#481_modify_adminusers_smb_export' of git://github.com/Mchakravartula/rockstor-core into Mchakravartula-issue#481_modify_adminusers_smb_export
Add handle exception to the generic class
Implement backend support for smb share edit functionality. #467
Send admin users list to POST request.

Fixes #481
Update samba and user models to have M2M relationship for smb admin users.
Add edit icons to smb shares in the table. #481
Update samba share api to properly deal with admin users and add edit support. #481 #467
Add functionality to edit samba export

Fixes #481
Implement Update for samba edit

Fixes #481
Remove madatory sign for admin users field and populate the existing users in dropdown.

Fixes #481
Populate the edit samba page fields with previously saved values.

Fixes #481
fix minor typo bug and use remove for M2M delete. Fixes #481
Merge pull request #482 from Mchakravartula/issue#481_modify_adminusers_smb_export

Modify the admin users field with dropdown existing users in samba expor...