* Added compound indexes for treatments and entries collections. Updated ensureIndex to createIndex in mongo-strage.js as ensureIndex has been deprecated. Finally, updated testing/populate.js to be compatible with more recent versions of the node driver, as well as fixing a path issue.
* Fixed missing end quote in lib/server/treatments.js. Changed all newly added double quotes to single quote to match style guide.
* Removed indexes that referenced key600.
