[2.1.0-wip] some label, modal, docs issues

[MechanisM]

#1 is ".label" inside ".btn-mini"(this one appeared today after commits related to labels)

look at screenshot:
removed
#2 is modals(this one is long time issue):

#3 bad link on

https://github.com/twitter/bootstrap/blob/2.1.0-wip/docs/templates/pages/index.mustache#L56
href="./download.html" - now it's called "customize.html"

[mdo]

Pushed fixes for 1 and 3, modal still needs work.