Updated plugin
Squashed 'Mobile Assets/' content from commit e24696e

git-subtree-dir: Mobile Assets
git-subtree-split: e24696e88ec3e58cb41a4296b950a6b6fa76d47c
Merge commit 'ae707c93800278e695bd00b980969cf43ab157f4' as 'Mobile Assets'
Merge branch 'master' of github.com:iansoper/sketch-plugins-collection

* 'master' of github.com:iansoper/sketch-plugins-collection:
  Updated submodules
  Updated submodules
Removed a submodule
Added Zeplin to .gitignore
Squashed 'Content Generator/' content from commit c9ecd31

git-subtree-dir: Content Generator
git-subtree-split: c9ecd31112d950973051e4f707eea5896c849034
Merge commit 'c8a891412ac843e43fc4506baae4d56df67b81db' as 'Content Generator'
Merge branch 'master' of github.com:iansoper/sketch-plugins-collection

* 'master' of github.com:iansoper/sketch-plugins-collection:
  Changed back to submodules
  updated gitmodules
Updated submodules