python: slightly changed interace in openage.assets
buildsystem: cpp/conifig.h now uses local linkage
Merge remote-tracking branch 'origin/master'
buildsystem: made make more silent
buildsystem: fixed dependencies

codegen should now run IFF it is required, and not more than once
added some custom_command comments to beautify the output
buildsystem: added 'make cleanpymodules'
buildsystem: fixed 'make media' invocation

testing is the future
buildsystem: fixed conversion output folder
convert: new unit class and command property discovered

domesticated animal unit class and unit command ressource added
convert: fixed asset output path for media conversion