Namespace LESS mixins in order to play nice with others

[interactivellama]

.vertical() becomes #fuelux > .vertical()Fixes #1354 and #1158

Also converts mixins from camelCase to dash-style to fix #1186.

The following would need to be added to test in fuelux.less

@import "../bower_components/bootstrap/less/variables.less";
@import "../bower_components/bootstrap/less/mixins.less";

@import "../bower_components/bootstrap/less/normalize.less";
@import "../bower_components/bootstrap/less/print.less";
@import "../bower_components/bootstrap/less/glyphicons.less";

@import "../bower_components/bootstrap/less/scaffolding.less";
@import "../bower_components/bootstrap/less/type.less";
@import "../bower_components/bootstrap/less/code.less";
@import "../bower_components/bootstrap/less/grid.less";
@import "../bower_components/bootstrap/less/tables.less";
@import "../bower_components/bootstrap/less/forms.less";
@import "../bower_components/bootstrap/less/buttons.less";

@import "../bower_components/bootstrap/less/component-animations.less";
@import "../bower_components/bootstrap/less/dropdowns.less";
@import "../bower_components/bootstrap/less/button-groups.less";
@import "../bower_components/bootstrap/less/input-groups.less";
@import "../bower_components/bootstrap/less/navs.less";
@import "../bower_components/bootstrap/less/navbar.less";
@import "../bower_components/bootstrap/less/breadcrumbs.less";
@import "../bower_components/bootstrap/less/pagination.less";
@import "../bower_components/bootstrap/less/pager.less";
@import "../bower_components/bootstrap/less/labels.less";
@import "../bower_components/bootstrap/less/badges.less";
@import "../bower_components/bootstrap/less/jumbotron.less";
@import "../bower_components/bootstrap/less/thumbnails.less";
@import "../bower_components/bootstrap/less/alerts.less";
@import "../bower_components/bootstrap/less/progress-bars.less";
@import "../bower_components/bootstrap/less/media.less";
@import "../bower_components/bootstrap/less/list-group.less";
@import "../bower_components/bootstrap/less/panels.less";
@import "../bower_components/bootstrap/less/responsive-embed.less";
@import "../bower_components/bootstrap/less/wells.less";
@import "../bower_components/bootstrap/less/close.less";

@import "../bower_components/bootstrap/less/modals.less";
@import "../bower_components/bootstrap/less/tooltip.less";
@import "../bower_components/bootstrap/less/popovers.less";
@import "../bower_components/bootstrap/less/carousel.less";

@import "../bower_components/bootstrap/less/utilities.less";
@import "../bower_components/bootstrap/less/responsive-utilities.less";

[interactivellama]

Updated.