use an a.navbar-brand to properly markup and align the brand
fix input-group markup
*-success should be used when is semantically correct
buttons should be buttons
just some spaces to tabs
a list-group semantically fits better here
a media object semantically fits better here
use a p.h5 to simulate an h5, and avoid using text-muted when not disabling components
Merge pull request #1 from trumbitta/some-little-improvements-to-bootstrap-markup

Thanks William,

I'm glad to merge your fixes, not sure about the simulation of h5, but for our mockup it's ok.