Fix image cache unit tester
Fix race conditions in image cache
Fix double-lock
Fix leak
Fix null ptr
Fix return thread deadlock
Fix dead-lock
Set upper limit of 1 second on image servicing down from 60 seconds, add pipelining for speed, improve verbose mode, and add more error checking
Fix load loop reaction
Fix warning
Add canvas free callbacks
Do not reclaim textures used last frame if they are already half-sized
Canvases do not get half-sized?
Merge dupe touch events