Include a note about text-based form control styling

fixes #8824.
Merge pull request #11110 from nikolawannabe/patch-1

Include a note about text-based form control styling
add dots to class name references for consistency
Fixed broken link
Merge pull request #11128 from lipis/patch-3

Fixed broken link in README.md
redo the glyphicons icons list to make icons not blurry on edges /cc @jankovarik
Merge branch 'master' of github.com:twbs/bootstrap
upgrade to html5shiv v 3.7.0