- added package.json as suggested by KimGressens in issue #60 : this will make installing the dependencies for the cakefile easier to install
- updated readme with info about the cakefile/ build process etc
- worked on preliminary elements for dropbox integration:
 * moved connectors into core as they are essentially part of it (storage etc)
 * added  backbone.dropbox from repo
 * added menu item for dropbox login

- overall cleanup
 * removed a lot of debug console messages
 * small but many cleanups in different files (nothing functional, just cleaning up useless stuff)