normalize bootstrap

bootstrap 2.3.2
    fac3aaa47af98bb4c3425cc9d4e2214fcdf95cc2 bootstrap-3.1.1-dist.zip

bootstrap 3.1.1
    74165384078f298cf852db6c83c47bbb5852ac98 bootstrap.zip
add angular 1.2.12
remove angular 1.2.11
normalize