Adding Method to calculate the current server URL (note that we need to get the value from the current request since the TM server will be running in a NAT environment and doesn't know what is its real IP address)
Improved the way Welcome email is sent:
 - Subject,body and footer are now on TMConsts.cs
 - Removed sending extra admins email on user creation (since that info is available to TBOT)
 - Fixed couple text typos on email message
 - Added extension method to calculate the user's full name (taking into account the values of first and last name)
 - welcome email is now sent using an extension method

Refactored calculation of serverURL into separate method (see previous commit)

Added UnitTest cases for:
   - expected welcome email functionality
   - fullName Extension Method
   - serverUrl Extension Method

Fixes https://github.com/TeamMentor/Master/issues/486
Merge pull request #32 from DinisCruz/486_WelcomeEmail

486 welcome email