WIP Sprite9 Validation.
looping animation unit test.
add Animation Tests for chaining and seeking.
invisibility test.
tests cleanup.
remove spam print.
Merge branch 'develop' into sprite_9_validation
Sprite 9 validation improvements.
Merge branch 'develop' of https://github.com/spritebuilder/SpriteBuilder into develop
zero duration animation unit test.
limit spring stiffness.
add comment to tests.
Merge branch 'develop' of https://github.com/spritebuilder/SpriteBuilder into develop
Merge branch 'develop' of https://github.com/spritebuilder/SpriteBuilder into develop
Bugfix for #664, relase publish and smartsheets generate optpng errors.
Merge pull request #661 from NickyWeber/bugfix/1.1/#649_psd_filelookup_issue

Bugfix: Github issue #649 for 1.1
Merge branch 'v1.1' into bugfix/1.1/#664_release_publish_optipng

Conflicts:
	SpriteBuilder/ccBuilder/CCBPublisher.m
	SpriteBuilder/ccBuilder/PublishImageOperation.m
Merge branch 'develop' of https://github.com/NickyWeber/SpriteBuilder into develop
Initial version of Sprite Builder Pro Installer.
SBPRo version written.