Some dojox.mobile.Switch classes cannot be instantiated programmatically

[ykami]

This works:

new dojox.mobile.Switch({"className":"mblSwArcShape1",...})

But this doesn't work:

new dojox.mobile.Switch({"className":"mblSwRoundShape2",...})

Reported by dongbing.

[ykami]

In [26860]:

Fixes #14087 !strict. Fixed a problem where the class name cannot be passed correctly when instantiated programmatically.

[ykami]

In [26861]:

Refs #14087 !strict. Allow use of 'class' in addition to 'className'.