Phase-1, added task
Added backend and frontend to push test package to nuget test environment gallery
Added Search Service Latency back and front end
Catalog and resolver lag

Added catalog and resolver lag, plus front end for weekly trend and
daily averages
Download Package Task added

Front and back end for downloading a package
Incorporated feedback

Deleted LatencyAverageDetails, parameterized urls, use long instead of
double for graphs and tables.
Ready to merge
Merge pull request #147 from NuGet/jassCreateE2ELatencyReportTask

E2E Latency Reporting: Time elapsed in milliseconds to upload, download and search a package; lag between DB and Catalog and between Catalog and Resolver Blobs- back and front end for trends