Theme features, settings, info need update to D7

Currently the theme settings do not work. This is caused by outdate theme.info file, use of D6 theme setting functions, and incorrectly named variables. I started at the info file and worked through untill the theme settings started working. This changed a fair bit of code but I can't really split this out into smaller patches.

Info file - in Blueprint and BPStarter
- remove engine as default in D7
- rename column regions to 'sidebar_first' and 'sidebar_second'
- rename 'primary_links' to 'main_menu', 'secondary_links' to 'secondary_menu'
- remove 'misison' and 'search' theme features not used in D7
- Minor tidy

theme-settings.php
- Delete template.theme-registry.inc as D7 provides settings for base theme and sub theme.
- Migrate blueprint_settings() to blueprint_form_system_theme_settings_alter()

Remove Block edit link hover feature. This is replaced with Contextual Links module in D7. Delete template.block-editing.inc

Template.php
- Enable blueprint_theme() with functions implement 'Rebuild registry' and 'Animated Submit' theme custom settings.
- Fix blueprint_preprocess_block(). Core now provides most classes. Only one missing is 'block-last'