Update AnalyticsManager.cs

- Fixes issues when in IIS7 and the (advanced) option "Load Profile" is set to false by changing the certificate store to the machine store instead of the users.

- Changes handling of date loading into the data table so it can be formatted correctly.
Update DataItems.xml

- Changes handling of date loading into the data table so it can be formatted correctly.
Merge pull request #5 from ginji/master

Couple of fixes