Deploy OS X App bundles with Travis CI

[ghost]

Dont't merge this directly into the master branch!

Just want to notice you that I've automated the build&release process with Travis CI.
Anyone can use this .travis.yml to build his/her own CataclysmDDA.app (Graphics or Terminal).

For example, all tagged commits got released here:
https://github.com/auto-load/Cataclysm-DDA/releases
Note: to deploy the app, you must create a tag for the project

Have fun! 🍰

[illi-kun]

@jakwings If it shouldn't be merged it shouldn't be here. Why you didn't put it on the forum?

[ghost]

@illi-kun I said this shouldn't be merged directly into the master branch. I need some feedback, and just be waiting now.

There are far less active osx developers on the forum. This GitHub repository is a better place for developers to find useful information about the compiling and deployment of osx build.

[illi-kun]

Typically, we're adding '[CR]' (comments required) tag to the PR's title for this case.

[mugling]

If you don't want this merging would be better as an issue

[ghost]

Ok, I can see that the official jenkins build is enough for testing the compilation on os x.