[For 1.8] Profile Picture

[Starpaul20]

Plugin has been updated to 1.3.

- Sanitized usernames
- Ability to disallow remote profile pictures
- Use my_validate_url function
- Renamed profilepic to profilepicture
- Changed description input box to textarea
- Parse badwords in description
- Removed PHP closing tags
- Use THIS_SCRIPT for template caching
- Miscellaneous cleanup

To update, you must first deactivate the plugin (do not uninstall), upload all new files and reactivate.