Switched to bootstrap and font-awesome from CDN

Signed-off-by: Marko Locher <marko@locher.at>
Updated github gems

Signed-off-by: Marko Locher <marko@locher.at>
Delete local bootstrap files

Signed-off-by: Marko Locher <marko@locher.at>
Updated icons from glyphicons to font-awesome

Signed-off-by: Marko Locher <marko@locher.at>
Fixed indention of headers

Signed-off-by: Marko Locher <marko@locher.at>