* adds a new configuration option ("CollectionShowSystemInfo" = bool), in the 'Game Collections Settings' GUI. Defaults to previous behavior (true).
* reloads the Collection when the configuration is changed.
* 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.
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.
Some drivers (such as hid-sony) configure analog triggers (L2/R2) as axes
with axis range -32768-32767, but the resting value starts at -32768,
causing an initial or light press to register erroneously as a minus
axis value.
Fix by shifting ABS_Z and ABS_RZ axes that are detected to rest at
-32768 so that they will range from 0-32767 instead.
Patch based on Jools Wills' earlier commit: https://github.com/RetroPie/EmulationStation/pull/58
