Ability to use standard .NET property naming conventions when deserializing (eg. part_no -> PartNo), and property aliases
Add unit tests for convention-based property naming
Use YamlAliasAttribute value when serializing.
Fixed support for nullables

Nullables were being serialized as objects (i.e. with HasValue and
Value properties), and therefore could not be deserialized.
Support for the TimeSpan type
Fix bug when emitting null scalars.
Merge pull request #18 from roji/nullable

Nullables and TimeSpan
Merge branch 'master' of github.com:aaubry/YamlDotNet
Merge pull request #17 from Daniel15/property-aliases

Property aliasing
Fix failing unit test.