Merge pull request #5 from gabesullice/master

Implement hook_watchdog()
Changes admin access argument
Adds install file
Swap out set_message for watchdog, separate message text with commas
PHPDocs
Wrap version checker in hook_init, renaming user table function
Move hook_requirements to .install
Refines hook_requirement
Adds config for watchdog severity
Adds 'off' option for watchdog messages