Setup Travis-CI

[marcobiedermann]

How about setting up some automatic tests via Travic-CI?
You already added some settings for ScssLint.
If you are interested, I could set it up, so you only have to add this project to Travis :)

[una]

Sounds good to me :) I turned it on -- wanna make a config and put in a PR?

[FloMko]

#284
initial setup