Removes hard-coded options for width & height

These width and height specification is far more useful as CSS.  Not providing a width or height at jQuery initialization caused CSS dimensions to be ignored.
Adds option to specify the removal link character

The default "x" string can be replaced with the option "removeText".
Removes nonbreaking spaces arbitrarily added to tag name

The spaces were completely unable to be configured, not wrapped in any span, etc.  By removing them, the client CSS can control spacing more directly.