Added configuration property for disabling the page & post type builder in the Extension manager.
Upgraded dependencies to the latest version.
e page & post type builder in the Extension manager.
Merge remote-tracking branch 'piranhacms223/2.2.3'

Conflicts:
	Core/Piranha.Mvc/Piranha.Mvc.csproj
	Core/Piranha.WebPages/Piranha.WebPages.csproj
	Core/Piranha/Config.cs
	Core/Piranha/ConfigFile.cs
	Core/Piranha/Piranha.csproj
	Core/Piranha/Properties/AssemblyInfo.cs
	Core/Piranha/Web.config
	Piranha.Azure/Piranha.Azure.csproj
	Piranha.Azure/app.config
	Piranha.Azure/packages.config
	Templates/TemplateSite.Mvc/TemplateSite.Mvc.csproj