rst typo: wrong way to specify a URL
Merge branch 'long-term' of github.com:WimPessemier/uaf into long-term
an empty LocalizedText should return an empty string
Added support for the EnumValue type.
Added a Guid::fromString method, so that existing GUIDs can be changed.
Added missing constructors
Updated docs for the last 2 commits (adding of Guid::fromString, and missing constructors of NodeId)