no units on 0 values
no need for zero padding on navbar top/bottom; better comment
add back bottom margin to navbars
make that left/right padding, not top/bottom on navbar
outdent the rows for tablets and above
add the fade class to the default modal docs
Updating the README.md to fix the link to Bower
Merge pull request #7750 from hppycoder/3.0.0-wip

Updating the README.md to fix the link to Bower
Merge remote-tracking branch 'upstream/3.0.0-wip' into 3.0.0-wip