Moved static files

Moved all static files to /static.
Added requirements.txt
Updated .gitignore
Added Procfile
Updated .gitignore

Excluded webassets cache and Flask-Assets generated cache.
Updated requirements.txt
Written basic app functionality

Added instasong.py main file and implemented home() page and suggest()
URL for AJAX suggestion requests;
Added config files;
Declared assets via Flask-Assets and integrated them in templates;
Added main page template which takes care of Facebook login and
suggestion AJAX requests;
Added channel.html used by Facebook SDK.
Moved HTML demo for FlatUI to /static
Added some interface elements
Merge pull request #1 from linkyndy/deployment-and-organisation

Deployment and organisation