Fix characters blocked by messages
Guard Game_Interpreter::Update() with an updating flag
Fix bitmap rotation (position and initial angle)
Fix SetCloseAnimation(frames = 0) and only refresh map by timers once a second
Add fatigue trigger, fix hp trigger and clean battle_calling flag to make battle interpreter work
Make sure that no child interpreter is resetted while it's updating
Fix magnification+rotation bug and remove duplicated code for magnification
Avoid recursive folder mapping when not needed and fix a mistake
Implement bush depth for character sprites and fix screen center
Fix battle_calling flag mistake
Merge pull request #326 from Zegeri/development

Bushes, improve battle interpreter, fix rotation effect and other fixes
Add Speex DSP support to autotools and CMake
resampler: pass Speex DSP cflags and libs to automake
RTP table: fix lillith name for RPG Advocate's RTP
Use 44.1KHz for SDL1.2 to match SDL2 and add add speex header