Changed email validation to allow '+'
Merge pull request #105 from cloudspokes/tom-I-103226-allow-+-in-email

Changed email validation to allow '+'
fix tests
quiet mode for npm install
Combine Challenge Registration APIs
Merge branch 'master' into merge_challenge_registraion_api
Fix undefined error in middleware.js
Merge pull request #106 from Ghost141/cache_fix

Fix undefined error in middleware.js
Fix undefined error in cache system.
Review Opportunities API update
Merge pull request #108 from Ghost141/cache_fix

Fix undefined error in cache system.
Add submission end date filter, event id, platforms and technologies
fix semantic issue
Add Event Id and Submission End Date Filter
Platforms and Technologies APIs
move platforms and technologies api to data group
add event name
fixed a couple grammar issues.
Social icons and links.
Removed joining review table.