Slider: Remove unused variable

sliderLabel variable is not used.
Core: Min height for empty toolbars. Fixes #6258.
Build: Fixed various archives where files where missing
Removed theme files from  CDN zip
Build: Fixed demos build
Split files.css by type
Build: Fixed js and css targets
Theme: Correction of the selector for the rule that set different border-radius for checkbox icons.
Merge branch 'issue-6258'
Autoinit: Add wrapper to $.widget to inject default initSelector to widgets, add enhanceWithin function to helpers
Autoinit: Remove registry and replace with new auto init
Content Widget: Remove mobile base widget
Widget Factory: update to lastest from ui
Checkboxradio: ensure proper input order is maintained in the dom durring enhancment. Fixes #339 - Checkboxes don't work when used with ROR checkbox helper
Autogrow: fix height calculation to account for borders Fixes #6180 - Autogrow: calculated height contains border height and Fixes #6178 - Textinput: height not correctly calculated due to box-sizing thanks @jhogervorst
Merge pull request #6112 from stforek/slider_unused_variable

Slider: Remove unused variable
jqmData: Check index of before running regex to improve performance Fixes #5999 - $.find: added indexOf checking for jqmData selector to improve speed on non-jqm
selectors Thanks @tosyu
One line upstream rebase command
Allow Cross Domain Request for Trigger.io apps
Grid: Added margin for selectmenu and checkboxradio in grids. Move rule that unsets button margin to make sure the override always works.
Demos: Updated button in grid demo. Blocks should always be direct child of grid.
Listview: Add icon position class again.

It was removed to reduce adding classes to minimum, but the downside is that we had to use slow attribute selectors in the CSS. We probably also want to support left position in a future version and might need it for dir="rtl" support so I reverted this change.