More JQuery noConflict goodness!

Hi Guys,

I missed a few spots that @dvdotsenko mentioned, I added $.noConflict support in:

jSignature.CompressorSVG.js
jSignature.UndoButton.js
plugins/signhere/jSignature.SignHere.js

I also ran the build script this time and have tested the new minified version in our codebase; all seems good!

Thanks,

Michael