Update testing matrix

[rnelson0]

Ruby 1.8.7 is EOL and is no longer in the Puppet Labs testing chain
Remove Puppet 2.7.0
Add Puppet 3.8.0-4.3.0
Trim excludes to match updated testing versions

[rnelson0]

Personally I'd love to remove <3.5 but I'm not sure that's worth tossing out quite yet. I also know many modules only test 4.0.0 or the latest 4.x.0 but there ARE some differences between 4.x versions that have bit me before.

[beddari]

My experience is that the matrix shipped here is waaaay beyond expectations ;-) My vote would be to 1) slim it down a lot 2) ship a new major version soon that pushes for 4.x and allows failures when future parser is off. But this is @garethr's call :)

[rnelson0]

@beddari I've recently switched to only ~> 3.0 and ~>4.0 in my own modules based on voxpupuli work. Is that close to your expectations?

I kinda forgot about this but should probably update it again before asking @garethr to merge it!

[beddari]

@rnelson0 Yes. Today with open source Puppet my matrix is only Ruby 1.9.3 and 2.0.0 with 3.8.x, then a single 4.x.0, yes. I've not had enough exposure to hit differences between 4.x versions (yet?).

[rnelson0]

@garethr This is a bit more trim now and reflective of what many forge modules use for testing now, without being too excessive.

[beddari]

👍

[cdenneen]

@rnelson0 @beddari while I like the idea of tighter matrix for people using PE shouldn't we be testing the 4.x.x versions shipped with PE? Or at least the latest versions of 2015.N.X and soon to be 2016.N.1(4.4.1)?
All of those users won't be able to update their puppet or ruby since they are vendored.