User data#1

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lohstroh wants to merge 3 commits intomasterfrom

Commits on Aug 5, 2013

add support for .atlas files, add support for exporting spine data (resources-[x] folders and .json files should be in a folder named "spine" under the "Resources" directory of the project)
jlandon
committed
add additionalPublishPaths to ProjectSettings (editable through "Publish Settings…"), small tweaks to build script
jlandon
committed
add support for userStringData property
jlandon
committed