Also a general cleanup of CMakeLists.txt and many small code changes to satisfy Clang that complained quite a lot and actually wouldn't compile the binary at all at first.
As pugixml seems to be well supported nowadays and seems to ship with most distributions it's pretty pointless to keep bundling it with EmulationStation.
On the first run it downloads a few resource files needed to intepret the otput of
game search api calls these resources go into ~/.emulatiostation/scrapers
The resource files include the list of developers and the list of publishers.
To update the lists simply delete the files and relaunch emulationstation.
Searching a game by id (GamesDB id) is done as before by manually edit the search
query and query for "id:<gameId>".
