Fix parsing of table storage date objects to always set the timezone, and allow 7 digits for seconds.  Dates that are passed in that don't have a timezone (naive) are assumed to be UTC.  Dates that have a timezone are converted to UTC as they are sent to Azure .
Updates to table storage timezone test.
Merge pull request #201 from huguesv/storagedate

Add support for timezone for table storage DateTime entity data type and fixes parsing of DateTime values that were created from C#.