add anchor target option
target blank option working, looks horrid
Add a save button to the anchor form, add classes to the form as not to rely on non specific selectors
remove overqualified selectors
prevent default link action on the save link
Merge branch 'link-target-option' of github.com:createdotnet/medium-editor into createdotnet-link-target-option

Conflicts:
	dist/js/medium-editor.min.js
Merge branch 'createdotnet-link-target-option'