created redis client
added primitive authentication for github
gist backend now functional
Only load libraries over https for security
Removing old website data to avoid confusions
reindent server.js
Deleted visualization experiments
Removing unused files
Removed unused code
Limited size of people pictures
Space Experience bar and list
Added google 'suggestions'
Better comment on search query logging
Added Coursera suggestions in Carpe Diem
Committing missing files for coursera and carpeDiem
Log user's IP address for each search
Adding newrelic metrics
Revert "Adding newrelic metrics"

M: newrelic crashed our prod server

This reverts commit a260b0dc9cd0a54fa843b21c89b4aafcc2305301.
Added statement of purpose to header
Adding Zakwan's Linkedin Tutorial