Issue #342: Fix the update path for node & comment picture theme settings.
Issue #130: Moving Favicon and Logo to site settings page. Hiding theme settings pages for themes with none. Converting color module to use config.
Merge pull request #473 from quicksketch/342/fix_node_picture

Issue #342: Fix the update path for node & comment picture theme settings.
Merge pull request #472 from quicksketch/jenlampton-130-remove-global-theme-settings

Issue #130: Remove the global theme settings page.
Issue #130: Fixing node update of user picture toggles.