Fixed freeze of Google map.  The highlight path routines were freezing, temporarily disabled this feature.
Fixed path hightlighting.  This version of the app is functional for browsing datasets in the public Arbor collections.
Fixed most of the highlighting issues.  This version should have the full, traditional phylomap functionality and is ready for user testing. 

Added attempt to authentication with girder through the API. (login in navbar)  The authenticate service is invoked, and returns an authentication token from girder.  The token is returned in a custom header to Girder, but only public data comes back, so authentication isn't working yet.