RC4! Almost ready for v2

Merge pull request #100 from dhensby/pulls/new-base-box

Moving to centos-7.1 box

Various new fixes

Various new fixes including:

• Better SS installer
• Clearing SS cache on provision
• Fixing an issue when yum update is run and shared folders no longer mount
• Moved to proper shebang line

Centos 7 RC2

Fix bug with Sass installer

Centos 7 Release

Merge pull request #53 from dhensby/pulls/centos-7

Moving to CentOS 7

Version 1.0

CentOS 6 box for use with SilverStripe