UI fixes and more charts.

- Added more charts to 'dashboard_2'.
- Added code snippets for probable later use in 'extra_code.txt'.
- Fixed 'login form' vs 'chart' display issue.
- General code cleanup.
- Renamed 'starfish_dashboard' to 'dashboard'.
- Renamed 'dim_met.class.php' to 'report.class.php'.
- Renamed 'logic.class.php' to 'normalise.class.php'.
- Removed 'account_GA.php'.
- Removed 'blog_ids.class.php'.
- Removed all test classes.