Cleanup, merge in changes to merb-core 0.9.3
* Merge in changes in merb-core, based on a newly
generated merb-core 0.9.3 generated app.
- Various small changes, including new rake env.
- New autotest/ directory. Deleted out .autotest.
* Added in a couple missing methods provided by
merbful_authentication generator. Fixed missing
activation code routes.
* Update list of dependencies in INSTALL and versions.
* Reorganize code in init.rb for clarity. Add FIXMEs.
* Uncomment validations and hooks in User.
* Added GPL header to init.rb.
* Updated copyright year to 2008.