#2839 - Updating Travis CI with 5.5 and 4.1
#2839 - Run coverage only on PR and updated matrix
#2839 - Updating to fix errors
#2839 - Perms and setting to not exit on non-0
#2839 - Removing all output for the travis scripts
#2839 - Setting to PHP 5.2.4 for WP Core Parity
#2839 - 3.9.2 matching our .org requirement
#2839 - Derp...5.2.4 not supported
#2839 - Adding PHP 5.6 as suggested in ticket
#2839 - Adding in 5.2 again
#2839 - 5.2 isn't compat with PHPunit, adding hhvm
#2839 - Fixing test issue on 3.9.2

Due to the way 3.9.2 is expecting the post object to be loaded and the single view being seen, it's not working correctly in our unit tests being a mocked call. Marking as incomplete for now until we can come with a soultion.
Merge pull request #2896 from easydigitaldownloads/issue/2839

Improve Travis-CI Matrix and speed for general commits