bump versions
fix tests for serverspec 2.x
update to Graylog2 0.91 and ES 1.3.4
ES update needed, so we jump to 3.x
bump version to 0.91.3
Merge pull request #1 from ofross/master

Added support for RHEL in addition to Centos
relax platform checks to improve redhat support
next development iteration
allow override of restart command for services
escape secrets
add additional option for server/web/radio configuration templates
update gems