Update Qt project/Symbian
Add a command line option to load a state.

For debugging.
Disable load/save while no iso loaded.
Fall back to original filter logic when filter option is off
Move display list management to common GPU class
Move InterpretList and ProcessDLQueue to GPUCommon
Save states using gzip, load either way.

Could implement an option to save states uncompressed.  There's
a small performance hit.

Test files were 8% - 14% the size, but these are just from menus/etc.
Merge pull request #279 from raven02/linear-fix

Fall back to original filter logic when linear filter option is off
Merge pull request #280 from Orphis/gpucommon

Refactor some NullGPU and GLES common parts into GPUCommon class
Fix a crash with FPL objects in save states.
Revert "Save states using gzip, load either way."

This reverts commit df627f77388f5d18cc299ce465fe5164e15aecbb.
Restore run/pause shortcut. Reset doesn't need a shortcut.
Merge pull request #281 from unknownbrackets/savestates

Savestate tweaks (gzip, Windows cli/UI cleanup)
Fix some missing things / bugs in save states.
Fix android build.
Merge pull request #284 from unknownbrackets/savestates

Fix some missing things / bugs in save states.
Merge pull request #286 from xsacha/master

Update Qt/Symbian
Save more of the GPU's state, fix a crash.

Well, ReapplyGfxState() seems kinda dangerous now...
Move GPU state to sceDisplay, reset GPU on load.
Pause before browsing for a state file on Windows.