1.1.2dev: Minor improvements to `disableSubmit` jQuery function. Refs #11056.
1.1.2dev: Minor improvements to `disableSubmit` jQuery function. Refs #11056.

 * Returns a jQuery object for chaining.
 * Adds a title attribute to the submit button.
 * Returns immediately if the determinant doesn't match.
 * Improved variable names.


git-svn-id: 0d96b0c1a6983ccc08b3732614f4d6bfcf9cbb42@12450 af82e41b-90c4-0310-8c96-b1721e28e2e2

rbaumg/trac,rbaumg/trac,rbaumg/trac,rbaumg/trac