ANDROID: Remove parameter forcing use of Modern theme.

This parameter overrides any user choice in the GUI or config file,
which is not good UX design (and is making it hard to debug loading
issues associated with theme files).

If we want to set this to default to Modern, we should do this in
a different way i.e. do this by ConfMan.loadDefaultConfigFile()

This is probably related to the Android issue with the backend init
running before main() is called, rather than after...
HOPKINS: Start refactoring handleOpcode
HOPKINS: More refactoring in handleOpcode, some renaming
HOPKINS: Remove useless variables
HOPKINS: Remove one more useless flag
HOPKINS: Remove useless variable in MenuManager, some renaming
HOPKINS: Renaming
MT32: Update the MT32 emulator to a newer munt commit

Previous munt commit was f969d20 (Nov 15, 2012)
Current munt commit is 84b2819 (Dec 22, 2012)

We are still missing the changes from commit 788f7b1 onwards (Dec 22,
2012). There are bigger ROM access-related changes from that point,
which we'll have to integrate as well.
HOPKINS: Add MOD file support
HOPKINS: Load correct voice ressource file in BeOS and OS/2 versions
GRAPHICS: Add support for ILBM files containing uncompressed data.

Thanks to Tomaz^ for this patch.
GRAPHICS: Allow ILBM bitmap loading for images with 6 planes.

Thanks to Tomaz^ for this.
VIDEO: Add support for missing copyFrame type in FLIC decoder.

Thanks to Tomaz^ for this patch.
GRAPHICS: Add ability to override outputPitch to ILBM decoder.

This allows loading an image into a buffer of a larger width.

Thanks to Tomaz^ for this patch.
HOPKINS: Fix menu in BeOS and OS2 versions
HOPKINS: Renaming
HOPKINS: Some refactoring in OCEAN()
MT32: Update the MT32 emulator and adapt to its new API

Previous munt commit was 84b2819 (Dec 22, 2012)
Current munt commit is 6afddaf (Dec 23, 2012)

This commit also updates the MT32 driver code to the latest munt API
HOPKINS: Some renaming and refactoring
HOPKINS: Some more renaming, remove '== true' statements