Merge pull request #119 from OmniBlade/master

Implementing retro_set_controller_port_device to allow pad detach
Fix support for 16Kbit EEPROM saves
(pj64tosrm) Improve arg handling and add export support

- Supports drag'n drop of save files over the executable.
- Added proper mempack formatation.
- Improved Windows support.
- Added overwrite confirmation dialogs/prompt.
- Support for libretro-mupen64+ latest srm format.
Merge pull request #120 from heuripedes/master

(pj64tosrm) Improve arg handling and add export support
Fixing segfault when less than 4 controllers set on load