added bootstrap (forms) and change the layout of the forms

I've included Boostrap in the static/less folder. If your browser is not IE it will read the less files with less.js (static/js). If IE tries to read the styling I've already compiled the less files to CSS. 

I've only included the forms part of Bootstrap. I'll include the grid system in another pull request. I've also done a hack on the label of the forms.