Allow only two names in "Avatar Name".

Avatar name can only have two names ( first name and last name ). I have
updated the Modules/Web/register.cs and transaction related files at
Modules/Web/Translators/
Fix Allow Only two names in "Avatar Name".

code fix added in register.cs
Registration & Password Reset Modified
Merge pull request #2 from thish/WebUI

Registration, Password Reset & StaffAvatarName Styling