Snapshot console

call snapshot console ommand if there are are arguments to snapshot
Delete the temp file created for software update.
Merge branch 'master' of github.com:schakrava/rockstor-core
Remove NFS and Samba export creation from share details page.
throw a generic error when AD join fails
Merge branch 'master' of github.com:schakrava/rockstor-core
Modify formatting for no export message.
Remove actions from nfs exports table
Merge pull request #407 from Mchakravartula/issue#406_RemoveExportCreationInShareDEtail

Remove NFS and Samba export creation from share details page.
Merge branch 'issue#395_snapshot_cli' of git://github.com/sujeetsr/rockstor-core into sujeetsr-issue#395_snapshot_cli
Use api_error decorator for share detail and snapshot consoles
fix bug in batch mode cli where the first argument is being ignored.
return -1 when a cli command fails.
parse onecmd differently for commands executed over ssh.
support uvisible flag for snapshots from cli.