Updated Validators.
SlugUrl working by taking over from normal Tech request.
This could be bad for generated clients.
Merge branch 'master' of https://github.com/ServiceStackApps/TechStacks

Conflicts:
	src/TechStacks/TechStacks.ServiceInterface/TechnologyServices.cs
	src/TechStacks/TechStacks.ServiceModel/Technologies.cs
	src/TechStacks/TechStacks.Tests/IntegrationTests.cs
	src/TechStacks/TechStacks/AppHost.cs
Merge fixes and update to technology DTOs.