Redone DB functions

Commit #122620

SQL Tweaking/New DB Functions. A complete redo of the color.database.inc.

  - (Done) INNER/LEFT JOIN more!
  - (Done) allow color_get_theme_info and work on grabbing specific fields instead of all columns
  - (Done) change 'default_set' to 'default_scheme'. TRY TO USE ID!
  - (Done) in color_theme_select_submit() before hand use hidden field to include scheme_id
  - (Todo) Store info on what themes are colorable in {color} table