Vega Strike Code

Mostly fixed soundless video playback:
* Streaming videos are now set to nonlooping by default (it's the most common usage)
* AnimatedTexture::Done() wasn't working right with streaming videos - fixed by tapping into EndOfStreamException
* Wihtout a sound source, videos have to be Reset() to make them start from... ehem... the beginning.
* Certain callbacks from certain places (Terminate() from inside Draw()) would crash the engine.
Fixed by deferred execution of the Terminate() command.

RelWithDebInfo was missing... ehem... debugging info.

Bugfixes:
* BorrowedOpenALRenderer should never attempt to open a new device/context.
If a thread has no context, operations on the renderer should simply raise an exception.
* Don't initialize the SceneManager's renderer if sound is disabled.
This includes the case when there is no device, al_init.cpp will disable sound in that case.
* Don't invoke rendererful SceneManager functionality without a renderer:
- commit
- createSource
- createSound (renderer)

This closes ticket #61

Optional vegaserver (didn't test it, but seemed like a nice idea)

Merge fix from audio branch: mistyped rlaan mining base bfxm reference

Fix new resolution: it needs a 4:3 aspect ratio for base interfaces

Prevent assertion failure on broken bfxm files (which are there in the wild).
Instead, just print out diagnostic info.

Fix mining base: bfxm reference was mistyped

Add a new resolution 1600x900

Merging changes from trunk into audio branch