updated the base layout to use bootstrap

I've updated the included template with bootstrap3. This is not an attempt to make a kick ass design. Authors would still need to overwrite these templates. 
Also in the translations file there is an unneeded (and from my experience not working) string -message_info so i deleted that one


# New
![rsz_1inbox](https://f.cloud.github.com/assets/3365006/1348357/21514202-36c4-11e3-909c-71e6d99c0991.png)
![rsz_message](https://f.cloud.github.com/assets/3365006/1348358/2e8ef7ca-36c4-11e3-81de-26bf68308df9.png)

# old
![rsz_inbox_old](https://f.cloud.github.com/assets/3365006/1348383/da6e8e2a-36c4-11e3-83df-44ece843cbe0.png)
![rsz_message_old](https://f.cloud.github.com/assets/3365006/1348386/df687aa8-36c4-11e3-86ff-739e949b53d7.png)