GCS Website pending things

[aravindavk]

• Get google analytics code and add to _config.yml as google_analytics_code
• Content for "Powered by Gluster" box
• Content for "Ease of use" box
• Proofread content of all other boxes in home page
• Documentation - Quick start Guide
• Documentation - Installation
• Documentation - File Volumes
• Documentation - Block Volumes
• Documentation - Thin Arbiter Volumes
• Documentation - Monitoring
• Documentation - Troubleshooting
• Contributing, mailing list and other details in About page
• Blog - Block Volumes scale (Poornima & Kotresh)
• Blog - Monitoring (Aravinda)
• Blog - GlusterCS 1.0 release(Amar, John, Atin)