Remove bindElementToolbarEvents()

This fn seems to be unused
Merge pull request #148 from shaohua/patch-1

Remove bindElementToolbarEvents()
Updates dist files
add a preview on hover to anchor tags
Close toolbar action when selection is cleared on link
Merged master
Merge pull request #152 from yacomink/anchor-preview

add a preview on hover to anchor tags
Updates minified version
Formatting and naming convention