Big Optimization and Bugfixing Update

What's New:

- Source Code is optimized and restructured
- "Ready-to-Use"-Libaries like jQuery are now in js/libs
- Use config.js for general Settings and global Constants
- Use fn.js for small functions with non-specific intention
- Base Function of all Menupoint (except Settings) working

What TODO next:

- CSS!
- Page Refresh & Loading-Spinner Bugfix
- Google Maps in Building (pretty ugly yet)
- Settings
- small other Things (see Source Code Comments)
- Remove old Source Code (actual commented out for Learning and
  direct Comparison to new Source)
- Localization (would be german and english for the beginning
  ... only a bit really ^^)
- Upgrade to new jQuery Mobile Version (note Changelog when updating!)

Puh, that's it for now. Doing more in some days...