issues fixed for nav-justified on pills on android default browser.
set cursor to not-allowed for disabled elements
Moved modals inline properties to variables.less

In this commit I moved modals.less inline properties to variables.less
and also added those variables to customize.html.
run make on prev commits
make footer border color use header border color in modals
Merge pull request #8583 from liuyl/disabled

set cursor to not-allowed for disabled elements
Merge branch '3.0.0-wip' of https://github.com/salman-javed-confiz/bootstrap into salman-javed-confiz-3.0.0-wip
make again
Merge branch '3.0.0-wip' of github.com:twitter/bootstrap into 3.0.0-wip

Conflicts:
	dist/css/bootstrap.min.css
fixes #8399 w/ tests
Merge branch '3.0.0-wip' of github.com:twitter/bootstrap into 3.0.0-wip
fixes #8569
fixes #8568 -- account for margins in offset
Merge branch '3.0.0-wip' into 3.0.0-sass-wip

Conflicts:
	dist/css/bootstrap.css
	dist/css/bootstrap.min.css
	scss/_dropdowns.scss
	scss/_modals.scss
	scss/_navs.scss
	scss/_pager.scss
	scss/_pagination.scss