Revert "Replace jwcrypto-bundle with minified version."

The minified version of jwcrypto changes all method names, along with
variables. This removes 'require' as a valid method, and breaks
everything.

Having a non-minified javascript file is not a major concern for an
extension, as the file is not 'downloaded'.

This reverts commit 61fccb531449cc3402ee7e03f1a81e73639a1ac1.
Whitespace and semicolon fixes for identity tests