Fix image upload bug #30(critical).
Fix image float bug #30.
Fix image float bug #30 with build file.
Add Control Selection Info.
Add InsertHorizontalRule(Cmd+Enter).
Fix #7.
Fix tab bug. indent on list or range collapsed.
Adjust opacity of control-selection-info.
Add option for editable's tabIndex.
add tabindex
build patch
Update README
Use recess instead of less.
Fix undo bug on recent color.
Add help dialog.
Add help dialog(build).
Add heading 5~6.
Add callback options(oninit, onenter, onfocus, onblur, onkeyup, onkeydown)
Update README.md
Update README.md