refactor(di): move _getInjectTokens into annotations.js
refactor(di): adds empty line to util.js
refactor(di): moves _getInjectTokens into annotations.js
Merge branch 'Refactor-getInjectTokens-to-annotations' of https://github.com/MikeMcElroy/di.js into Refactor-getInjectTokens-to-annotations

* 'Refactor-getInjectTokens-to-annotations' of https://github.com/MikeMcElroy/di.js:
  Moving _getInjectTokens into annotations.js