Added pre and post special animations hooks
Put all unit state changes into playerunit
Units return to idle animation at the end of specialEnd animation.
AddAnimationClip accepts looping now.
On ios the stringstream doesn't convert numbers like "10.0f" very well. So, build resiliency for that.
small movement tweaks
Merge pull request #74 from VajraFramework/unit-anim-spec

Unit anim spec
Flip png images on ios only.
Merge branch 'master' into hud-unit-switch

Conflicts:
	VajraFramework/XCodeProject/VajraStaticLibrary/VajraStaticLibrary.xcodeproj/project.pbxproj
xMerge branch 'hud-unit-switch' of github.com:VajraFramework/Vajra into hud-unit-switch
Unit toggle hud finsished