implement binary search tree in Go
Merge pull request #1351 from fluxusfrequency/binary_search_ruby

Binary search ruby
Change source order so you can tab + enter to submit comment
Merge pull request #1352 from drueck/reorder-controls

Change tab order on comment form so you can do tab + enter to submit
Upgrade approvals gem
Upgrade pry gem
Upgrade newrelic_rpm gem
Add endpoints for deleting read notifications
Add endpoint to delete alerts
Collapse migrations. Fixes #1344
Fix broken assignment metadata
Lisp Triangle exercise
Merge pull request #1355 from verdammelt/lisp-triangle

Lisp Triangle exercise
java: Import template for etl
java: etl tests and example implementation

Use Guava in the tests to make it easier to build up
maps needed for testing the API.
Clean up v1.0 javascript
Merge pull request #1359 from sit/java-etl

Java ETL exercise
java: Import template for meetup
java: meetup tests and example implementation

A straight port of the Ruby tests. The example implementation
uses Joda Time which is generally considered a saner date/time
library than what is built in to Java.
Replace incorrect uses of i.e. with e.g.