added stencil test for transparent lines
Merge pull request #18 from Tharit/strokeOverdraw

added stencil test for transparent lines
Run the GC when receiving low memory warnings
Removed line textures
Added MSAA support: canvas.MSAAEnabled and canvas.MSAASamples
Use 8bit stencil for MSSA as well
improved performance when stroking transparent lines
fixed stencil mask
Merge pull request #20 from Tharit/overdrawPerformance

improved performance when stroking transparent lines
added missing flush call
Merge pull request #21 from Tharit/overdrawPerformance

Missing flush call
Added clientX, clientY for touch event
Initialize currentTime once before the run loop starts
Refactored EJTimer, added EJTimerCollection
Fixed crash where flush was called on an already released rendering context
Retain the stencil buffer when presenting
Clear stencil buffer after creation
Release rendering context when EJApp is released - makes sense for embeding Ejecta
Wait for GL calls to finish when app pauses
Fixed touch events: publish 'touchesCancelled' as 'touchend'