use the app level documents directory instead of /var/mobile

This is a big change in that it changes the RetroArch system path where
it saves settings, game saves, etc. Using /var/mobile meant that
RetroArch only ran on jailbroken devices. This was the only thing
requiring a jailbreak.

Now not only will it work on vanilla devices, but all settings etc are
neating found in the app's documents directory.
enable iTunes File Sharing

Turning on iTunes File Sharing means being able to easily drop roms
into the app by dragging them in via iTunes.
Merge pull request #158 from CatalystG/qnx_input

PlayBook/BB10 Input Handling
Add CatalystG to AUTHORS
(Blackberry) Build fix
(Blackberry) Style/indent nits in qnx_input.c - two spaces -
placement of brackets - etc
(AUTHORS) Add catalystgdev@gmail.com to AUTHORS
(Blackberry) Get rid of bbutil - we don't need it
(iOS, ObjC removal) Convert RAConfig class into set of c helper functions.
(iOS/Griffin) Move ios_input.c and ios_joypad.c compilation to Griffin
(iOS) Remove some trivial wrapper functions around config_file.c
(iOS) Remove config file wrapper all together.
(iOS) Add fb_alpha_libretro.info
(iOS) Refactor RAGameView:
   Block system draw calls and use [GLKView display] to update the screen.
   Put logic in C functions rather than calling a selector on RAGameView.
Merge branch 'master' of https://github.com/Themaister/RetroArch
dot the system directory to hide it from iTunes Sharing

This esssentially hides the retroarch system directory when viewing the
documents directory through iTunes Sharing.

You can't browse folders this way anyways, so having it visible is
essentially useless anyways.

You can of course still get to this directoy via tools like iTools
(non-jailbroken) or ssh'ing into the device (jailbroken).
i did!
open directly to the Documents directory
ignore dotted files/dirs including '.' and '..'
Merge pull request #159 from maddox/non-jailbreak

Enable for Non-Jailbroken Phones