patch dropdowns for #7118
update versioning to 2.3.2
missed a few 2.3.1's
Fix link to Bower in readme
Update README.md
Apply #8166 to master so folks can build v2.3.2
Bump Recess to v1.1.8 to fix further less.js version problems

Apparently Recess v1.1.7 had another problem:
https://github.com/twitter/recess/pull/100
Merge pull request #8242 from cvrebert/patch-1

Apply #8166 to master so folks can build a non-empty v2.3.2
Merge branch 'master' of github.com:twitter/bootstrap
Removed unneeded files