Updated gitignore.
Ensure NullInputMechanism returns null not throw exception.
Set AspNetSample (host) to MVC 4.
Add placeholders for new schema source providers.
BUG FIX: logical manifest resource names in Imports project.
Remove PrivateBuilt in lieu of Imports.
DynamicValueTokenReplacementStrategy enhancement and bug fixes.
Tokenizer unit test enhancements/bug fixes.
Fixes GitHub issue #49.
Adds various XXXContainerConstruct interfaces and refactors API to not use concrete types.
Adds new XmlKnownElementMappingAttribute to allow interfaces to forward to concrete types.