Replace glyphicon width font-awsome
Merge pull request #983 from sexnothing/develop

Replace glyphicon width font-awsome
Update bootstrap to version 3.1.1
Merge pull request #984 from sexnothing/develop

Update bootstrap to version 3.1.1
Fixes #982: `Send message` link leads to 404 page if message module is not installed.
Merge branch 'develop' of https://github.com/pi-engine/pi into develop