Log Message:
retroarch: Update to 1.9.0

# 1.9.0
- AUTOCONFIG: Ensure correct directory is used when saving autoconfig profiles
- BLUETOOTH: Add a Bluetooth driver (Lakka-only for now)
- CHEATS: Fix for wrong number of remaining cheat search matches on some machines
- CHEEVOS: Option to play sound on achievement unlock.
- CHEEVOS: Upgrade to rcheevos 9.1
- CHEEVOS: Restore display of unlocked achievements across hardcore modes
- CHEEVOS: Hash buffered data when available
- CHEEVOS: Fix 'Auto Save State freezes RetroArch while Cheevos is enabled'
- CORE OPTIONS: Pressing OK (or clicking/tapping) on a 'boolean toggle' core \ 
option no longer opens a drop-down list. The value now toggles directly, just \ 
like boolean options everywhere else in the menu
- CORE OPTIONS: Toggling an option that changes the number of core options being \ 
displayed (i.e. things like `Show Advanced Audio/Video Settings) no longer \ 
resets the navigation pointer to the start of the list
- CORE OPTIONS: Before, RetroArch would identify core option values as being \ 
'boolean' if they had labels matching the specific strings enabled or disabled. \ 
Most core devs would abide by this, but not always... As a result, we sometimes \ 
would end up with misidentified values, with all kinds of Enabled, Off, True, \ 
etc. strings littering the menu, in place of proper toggle switches. All \ 
boolean-type value labels are now detected, and replaced with standard ON/OFF \ 
strings.
- CLI: A new command line option --load-menu-on-error has been added
- CRT: On the fly CRT porch adjuments - these changes allow a user to adjust how \ 
the porch algorithm generates the 15khz/31khz output. Giving the ability to \ 
change over/under scan.
- CONFIG FILE: Optimise parsing of configuration files
- DRIVERS: Implemented protection to avoid setting critical drivers to nothing \ 
thus preventing the user from locking him/herself out of the program
- EMSCRIPTEN: Fix input code to ignore unknown keys
- FFMPEG CORE: Prevent seeking past the end of files (hang fix)
- FILE I/O: VFS and NBIO interfaces will now use 64-bit fseek/ftell where \ 
possible, should allow for reading/writing to files bigger than 2GB
- INPUT MAPPING/REMAPPING: Add input remap drop-down lists
- IOS: Fixed iOS 6 version
- IOS: Hide the home indicator as it obscures the content too frequently
- IOS/METAL: Metal video driver now works on RetroArch iOS
- IOS/METAL: Support getting video metrics to support proper touchscreen interactions
- LOCALIZATION: Updates for several languages (synchronized from Crowdin)
- MEMORY/LINUX/ANDROID: Fix reporting of free memory
- MENU: Enlarged INT/UINT selection limit from 999 to 9999
- MENU: Fix cursor forced to first entry after displaying lists
- MENU: Make Notification Font option visible when Graphics Widgets are enabled
- MENU/RGUI: Add optional 'toggle switch' icons
- MENU/WIDGETS: Add optional widget-based 'load content' launch feedback animation
- MENU/WIDGETS: Make notification font size option visible when graphics widgets \ 
are enabled
- ODROID GO ADVANCE: Video driver - fix race condition with RGUI callback
- PLAYLISTS: Change playlists to use dynamic arrays. Instead of a fixed initial \ 
12MB memory allocation (99999 * 128 byte (on 64bit arch)), use a dynamically \ 
growing array
- PLAYLISTS: Playlist base content directory paths - portable playlists
- PLAYLISTS/SEARCH: Enhanced playlist search functionality
- PLAYLISTS/DATABASE: Add 'Explore' view
- PLAYLISTS/DATABASE/EXPLORE: Show system icons in explore view
- PS2: Improve FPS Limiter
- RUNAHEAD: Prevent runahead from being disabled *permanently* when an error occurs
- SHADERS/SLANG: Increased Slang max Parameters, Textures & Passes
- VIDEO FILTERS/BLARGG: Make Blargg_snes filter customizable
- X11: Add lightgun support