Skip over action buttons when tabbing

Previously, tabbing through a form selected each button before reaching the text area.

Fixed by adding a button.tabIndex attribute, with a default of -1 to make the browser skip over the button
Bump patch version
Rebase from gh-pages branch
Bump patch version, again
Updated to Bootstrap 3
Merge pull request #19 from jacoborus/master

Updated to Bootstrap 3
Bump version and deps
Fix preview button style
Add 'btn-toolbar' into header
Update readme
Update less and generate compiled version of it
Update less and generate compiled version of it to follow bootstrap 3 related #18
fix less error

variable @component-active-color is undefined
Merge pull request #20 from bierdok/patch-1

fix less error
Bump version
Some optimalisations

* Use `glyphicon-header` instead of `glyphicon-font`
* Don't prepend newlines if the heading is on the first line
* Only append newline to heading if a text was selected
* Don't insert a link if prompt returns empty or default
Merge pull request #25 from FokkeZB/patch-1

Some optimalisations
Adds an onFocus event similiar to the onBlur event
Merge pull request #27 from mightymax/master

Adds an onFocus event similiar to the onBlur event
Bump patch version