Some logo and favicon fixes
Remove print statements
Fix requirements.txt. Pip messes up the entries for

flask-uploads
flask-whooshalchemy
requests-facebook

which were pulled off of github and bitbucket. Pip however marks
it like they came straight from PyPI
Altered the colours of the logo a little
Match the colours of the navbar links to the logo
Add a picture to the post, when posting on facebook
Merge branch 'release/v0.8.14'