Initial commit
Merge remote-tracking branch 'github/master'

Conflicts:
	README.md
Merge remote-tracking branch 'origin/develop'
Merge remote-tracking branch 'origin/staging'
Merge branch 'staging'
Merge branch 'staging'
Merge branch 'staging'
Merge staging release 2.0.0 with master
Merge remote-tracking branch 'origin/staging'
added version.json
...
Merge remote-tracking branch 'origin/develop' into staging
fixed document.head
Merge remote-tracking branch 'origin/develop' into staging
fixed Spy and Sticky on IE
Merge remote-tracking branch 'origin/develop' into staging
Commit VERSION 2.0.0
Merge branch 'staging'
Commit VERSION 2.0.0
Merge branch 'staging'