Changes for SphinxSearch

Allow choice of version based on PPA repositories
Fix pid location in default conf since var/run isn't persistent across reboots
Add support for vagrant-hostmanager plugin
Set default sphinxsearch version
Merge pull request #413 from remailednet/sphinxsearch

Changes for SphinxSearch
Merge pull request #415 from remailednet/hostmanager

Add support for vagrant-hostmanager plugin
Fixed errors installing RVM due to the new installation procedure with signed package and a key
Merge pull request #416 from netoholic/master

Fixed RVM installation
Added option to use PHP 5.5
Merge pull request #418 from tylodo/master

Added an option to use PHP 5.5.