css for tooltip and tooltip.light
light and dark popover styles
move @import of bootstrap defaults to the top of all.less
made dark the default theme, refactored styles to theming mixin
refactor css to include theming mixin, fix light tooltip style
Remove unused alerts.less
Style dropdown list
Remove unchanged dropdown styles in variables.less
Add .lf-dropdown to demos/main. Fix dropdowns 'open' state.
Fix whiteapcing
Fix rebase issue