2.005
1. fixed the 'duplicate entry with 'flickr_api_key' during installation if try reinstalling over an existing instance.
2. Modified the install.php to be consistant for extension checks, permission checks and file exists checks.
3. modified the setup process to just simply return 'admin' as the password and prompt the user to change the password.
4. added simple 'DEV_MODE' constant for debugging
5. added check if the database exists during install
6. added upgrade task to change the Foreignkeys of the 'content' table from 'RESTRICT' TO 'CASCADE' so that the user doesn't need to manually delete each image in the album etc...

2.004
1. added verification for the gallery in the install.php, to check for php extensions, rewrite module, and file permissions.
