* Filter axes 2/5 for all devices, but only if LeftTrigger or RightTrigger is being configured. This should fix compatibility with XBox 360 and other generic controllers that use these axes for triggers, but won't affect other controllers using these axes for analog sticks, etc.
* Improve third-party PS3 detection (some Shanwan controllers have a grave accent in place of 'm' for 'Gamepad').
The hid-sony driver has both analog and digital buttons for the triggers,
and the analog values range from -32767 to 32767, which can cause two unwanted
input events (digital button and negative axis) per press.
Implement a function to filter out unwanted input events during configuration,
but isolate detection to known PS3 controllers with 6 axes so that older versions
of hid-sony and the sixad driver (which use 25+ axes) are not impacted negatively.
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>".
Starting up emulationstation takes me about 1 minute over the network
with a large collection of 27 systems with images.
This patch uses the loading screen to tell the user about the status
of the startup, with information how many systems are left for view
initialization.
The most beefy part of the startup process is initializing the views,
and preloading images.
This patch extends the `renderLoadingScreen` function to take a string
and uses it in `ViewController::preload`.
v2: Add SplashScreenProgress option enabled by default.
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
