Merge pull request #160 from yacomink/master

Fix anchor preview positioning (#159)
Updates minified version
1.6.5
Allow initialisation with a single DOM node
Merge pull request #163 from albertogasparin/single_el

Allow initialisation with a single DOM node
Updates dist files, adds test for single element initialization
work on allowing multi-level lists.
added indent and outdent button options.
Merge pull request #166 from eturk/165-dents

Add indent and outdent extra buttons
Changes indent/outdent icons to their respective fontawesome icons
1.6.7