Bumping to 1.3
Adding Union extension method overload that takes a param list instead of an IEnumerable, so you do not need to new up a list or array just to add one item to an existing enumerable
Merge pull request #92 from DarthFubuMVC/union-extension-method

Adding Union extension method overload to generic enumerable extensions
Update VERSION.txt
Rename Union to UnionWith so it does not clash with Union from mscorlib
hardening SettingsData.Child against multi threading 'cause it's killing me in FubuMVC