Table: prevent jqmData calls for columns without a priority.

Closes gh-7315
Fixes gh-7357
Helpers: Fixed typo in description

Closes gh-7429
Defaults: Fixed minor typo in comment

Closes gh-7427
Build: Update version from pre to -pre

Ref jquery/jquery-release#61
Closes gh-7328
Slider and Rangeslider: Express module dependency

Both modules have a hard dependency on the "vmouse" module that should
be expressed in AMD.

Re gh-5987
Closes gh-7383
Closes gh-7274
Demos: Allow text selection in INPUTs and TEXTAREAs.

Closes gh-6819