Fix Find/Replace-o; good catch, @FagnerMartinsBrack!

Problem introduced in 6b23a66c29c3613c6792a257aafa949c81746597
fix 'Calcuated' typo & run grunt; thanks @FagnerMartinsBrack

fixes typo introduced in 2b6ec389876fac116ae2a152e47be321632dd9ba
add loading class for mdo to style on customizer
Merge branch '3.0.0-wip' of github.com:twbs/bootstrap into 3.0.0-wip
fixes #6159
panels
Merge pull request #9271 from liuyl/panels

refactor panels.less