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.
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>".
If the Scraper configured in the settings is no longer available, don't crash when running the scraper.
For single game scrapes, we show an error for the user to change the configuration.
For batch scraping, silently choose the 1st scraper available in the list
Replace boost::filesystem::is_directory
with Utils::FileSystem::isDirectory
Replace boost::filesystem::is_regular_file
with Utils::FileSystem::isRegularFile
Replace boost::filesystem::is_symlink
with Utils::FileSystem::isSymlink
Replace boost::filesystem::exists
with Utils::FileSystem::exists
Replace boost::filesystem::create_directory
with Utils::FileSystem::createDirectory
Replace boost::filesystem::remove
with Utils::FileSystem::removeFile
