Merge branch 'release/0.2.0' into develop
Test on CentOS 6
Get package install working on CentOS
Get source install working on CentOS
Put freeswitch in daemon group on CentOS

This is what the packages do, and the init script depends on it.
Changelog entry for CentOS support
Rayo recipe packages for on CentOS

Packages for mod_rayo and mod_ssml are not released currently
Don't need the freeswitch group on CentOS
Default local_ip to the primary interface's IP
Fix up rayo on CentOS
More appropriate checking of freeswitch user’s group membership for CentOS vs Debian
Bump to 0.3.0
Merge branch 'release/0.3.0'