update version to 7.0.0 FL
Upgrade jQuery 1.9.1 version
remove the support of IE6/7
implement bootstrap
fix the removing ie6/7 issue
compile less script
update Button's style to use CSS3
fine tune less compile process
1. Update Button for CSS3 theme
2. Add doMouseEnter_ and doMouseLeave_ events to the zk.Widget class
3. Add the zk.webkit condition for webkit browser
4. Remove the support IE6/7 in layout.css.dsp
5. Change HTML doctype to use html5 syntax.
Merge branch '7.0' of github.com:zkoss/zk into 7.0
1. reimplement lessc for ZK EL function
2. add button.less file
update doctype to use html5
update
fixed z-index value for IE8
fine tune less compile process
add fontawesome 3.1.1
Merge branch '7.0' of github.com:zkoss/zk into 7.0
fine tune less compiler
fine tune less compiler
fine tune less compiler