Samba and NFS feature support

Merge pull request #165 from gluster-deploy/master

Fix xfs options

Whole lotta features

This release ships the following features:

• Multiple volume management from a single configuration file
• Proper backend-reset from the configuration file itself
• Snapshot management
• Quota management
• CTDB setup
• SMB share
• NFS-Ganesha
• Geo-Replication
• Subscription management
• Firewalld management
• CIFS mount
• Yum module to install or remove packages
• Service module to enable/disable/start/stop systemd services
• Shell module to run any shell command on remote machines
• A beta REST API for gdeploy

First release

This release includes the very basic operations like

• Setting up backends for GlusterFS.
• Creating a volume
• Adding a brick to the volume.
• Removing a brick from volume ...