Moved CSS for .ui-btn from button.css to core.css; Only use button.css for button and input elements (button widget).
Panel: Make sure active button class is removed when link to panel is a listview button. Fixes #5961.
Panel: fixed jshint error
Merge branch 'master' into next
Panel: Removed fix for #5961. No longer needed now the anchor instead of the list item get the button classes.
Popup: Removed fix for #4611. No longer needed now the anchor instead of the list item get the button classes.
Made transparent native input and select element inherit border-radius.
Listview: Reduced CSS for list buttons. Use global rules for padding.
Select: Use ui-fill-x class for the count bubble and use same theme swatch as the select button.
Listview: We don't need class ui-li-has-arrow anymore.
Listview: Correction split button count bubble position.
Select: Removed button padding and icon position rules; use global rules from core.css. Use listview CSS for count bubble position.
Checkboxradio: prevent reintroducing issue #1419; white-space nowrap doesn't work on label.
Checkboxradio: Removed padding and icon positioning rules; use global rules from core.css.
Listview: Reduced specificity of read-only list item selector.
Collapsible: Removed padding and icon positioning rules; use global rules from core.css.