0.1.8 alpha

New command line options, main menu background animations and map generation.

• Map generation enabled through a new added library as submodule:
  libgeramun. Finally, the first item in the main menu works: just enter a map name and hit enter to generate and start playing!
• Now when choosing the "Save and exit" option from the in-game menu no
  longer saves the map to a hardcoded saved_map.txt file, but instead
  saves in the original map file, overwriting it. Currently, it only
  overwrites .txt files - .tmx-loaded maps will be saved in a file with
  the same name, but with the .txt extension appended.
• New command line options: -c (centered window) and -f (fullscreen
  mode).
• New cool main menu background animation with clouds.

If you wish to build the game from source, it's easier to use the terrarium-xxx-source.tar.gz package instead of the Github-generated package, since the former includes its git submodules' source code.