Merge pull request #158 from NuGet/danliu/gallerystatusreport

schedule the create daily status report task for gallery
set the number of digits to 2 after decimal
Remove average from the texts
remove BackupDb, cleanupOnlineDB, importDBToFailoverDC
Merge pull request #162 from NuGet/workjobcleanup

remove BackupDb, cleanupOnlineDB, importDBToFailoverDC
Merge branch 'master' of https://github.com/NuGet/NuGet.Services.Dashboard into danliu/gallerystatusreport