Updates to layout, additional layouts, new utility functions, and renamed language folder.

Logic
- Added id handles for “Inner_*” and options for styling them.
- Moved auto-generated css to its own “field”, inserted after options are saved.
- Added utility functions for searching, inserting and removing elements in an array.

Layout
- Hooked title into Sprout module
- Combined contact and tagline into single “complementary” container (found the two usually go well together)
- Rearranged footer, separating copyright from widgets/social-links.

Other
- Renamed “lang” folder to “languages”, anticipating WPML support down road.
- Updated readme.