Added fetching and compiling libtcod in travis.

Signed-off-by: Lukasz Gromanowski <lgromanowski@gmail.com>
Added libsdl-dev in travis configuration.

Signed-off-by: Lukasz Gromanowski <lgromanowski@gmail.com>
Fixes for copying libtcod.so files.

Signed-off-by: Lukasz Gromanowski <lgromanowski@gmail.com>
Removed unused ls from travis config.

Signed-off-by: Lukasz Gromanowski <lgromanowski@gmail.com>
Merge pull request #36 from lgromanowski/travis

Added fetching and compiling libtcod in travis.