Merge pull request #20 from jk0/master

Use built-in functions instead of 3rd party libs.
Merge pull request #21 from jk0/master

Avoid a race condition when checking to see if an account is prime.
Merge pull request #22 from jk0/master

Sort watchlist by title.
Revert back to WebKit.
Merge pull request #23 from jk0/webkit

Revert back to WebKit.