add support for Linode provisioning
almost forgot the Linode tab
use correct Linode distribution names
remove "linode" text from Linode logos
Merge branch 'LinodeSupport' of https://github.com/displague/puphpet into displague-LinodeSupport
Removes Ubuntu 14.10 and CentOS 7.0; #1198
Fixes wrong Debian name for default; #1198
Fixes wrong link to API page; #1198
Linode CentOS boxes require another check. #1198
elrepo => elrepo