refactor(ionInfiniteScroll): make it primarily use own attrs, add tests
test(ionInfiniteScroll): remove unused code
fix(ionContent) - Fixed embedded object click. Fixes #723
Removed console log
fix(modal): Improve slide-up/down animations, remove flickers
fix(colors): Update all #4A87EE colors to use $positive color, closes #731
pretty up scss variable alignments
fix(actionsheet): Fix slide-up animation, closes #713
fix(actionsheet): Dismiss actionsheet when tapping backdrop, closes #733
fix(history): Separate histories and views, clear other views in clearHistory(), closes #724
fix(navView): _getView renamed to _getViewById, closes #736
fix(backbutton): Allow only one back button listener to run per click, closes #693
chore(build): documentation generation

Main changes:

* Use gulpfile now (build was getting way too disorganized with custom
tasks; gulpfiles are much easier to build clean custom tasks with than
Grunt.
* View README#Development for updated commands
* Docs written for ionContent, ionHeaderBar, ionInfiniteScroll.
* Docs are pushed to ajoslin's fork of ionic-site until they reach a
* point where they can be published.

**TODO, In Order of Priority**

1. Finish writing source-documentation for all existing components
2. Add multiple versions of docs (one per release & nightly, latest
 stable release docs being shown by default)
3. Add examples generation
4. Add searchbar to docs
chore(build): fix version.json
chore(build): update docs-publish task
chore(travis); comment out publish of WIP docs
chore(travis): make docs script work
chore(build): windows error improvements, better cssmin
docs(protractor): remove unneeded instruction
docs(README): update release instructions