Implemented extensions for Nominet:

DomainCreate/DomainUpdate/DomainInfo/ContactCreate/ContactUpdate/ContactInfo.
Also implemented some Nominet notifications: Domains Released/Handshake
Rejected/Registrar Change/Referral Accepted/Referral Rejected.
Changed xpath query for DomainCreateResponse /

DomainInfoResponse / ContactInfoResponse so it they process nodes when
in the ResData section of a PollResponse as well as part of a standard
EppResponse.
Merge remote-tracking branch 'remotes/dormisher/master' into extension-iis

Conflicts:
	EppLib/Entities/Contact/Contact.cs
	EppLib/Entities/Contact/ContactInfoResponse.cs
Base of an IIS extension (the .se registry).
Fix missing Contact properties in IisContactInfoResponse (UpId,UpDate)
Added TrDate in Contact and ContactInfoResponse
Implemented multiple status values and telephone extension info for Contact.
Added unit testing
Added Password and DiscloseMask to Contact
Updated unit tests and included EPP, secDNS and IIS schema files
Added gitignore
contributors
build status badge
build status badge
markdown readme
include information about the new EPP extensions
Fix missing namespace for host:chg in HostUpdate
Unit tests updated
Added ContactCheckResult
Added password change to Login