rails 4 readiness. Removed dependency on rails dummy app

[jdoconnor]

@lumoslabs/platform @11mdlow @seunghyo

[11mdlow]

What's our plan for versioning this and pointing lux to it? I'd imagine we are going to have to support rails 3 and rails 4 versions of the gem.

[jdoconnor]

the versioning plan is that this would be a major version bump and when lux is ready to consume it, it'll update in the gemspec

[jdoconnor]

i'll modify the travis config to get a rails 3 and 4 matrix going

[camertron]

The way you've done the testing stuff is really cool! :+1:

[jdoconnor]

there's a gem called combustion will may work for our trickier situations, too

[jdoconnor]

testing matrix is in travis config now.

[11mdlow]

:+1: