Force Connection: keep-alive headers to be sent
DEVELOPER-309 Remove sanctioned countries from dropdown on T&C page
Update Gemfile.lock
DEVELOPER-275 - Add PublishDate filter to developer materials
[DEVELOPER-285] - Fix the image links in projects by removing an extra plus.

Add .project to gitignore.
Fix bug for DEVELOPER-275 where dates can't be parsed
[DEVELOPER-295] - Fix kitchensink links on Get Started.
DEVELOPER-289 Use  #{site.base_url} on Log In link