• DateTime support http://jsaction.codeplex.com/wikipage?title=DateTime&referringTitle=ExplainSource
• Intellisense support http://jsaction.codeplex.com/wikipage?title=Intellisense&referringTitle=Documentation
• Caching generated javascript
• Methods organization: now all your method are part of Controller object.

So you don't have to write more
but
where Controller is the Controller holding your method.

Note: this is a breaking change.
I am very sorry for that, but i had no choice.
However, it should require minimal code changes.

Note: these sources and binaries may be outdated. I make a lot of changes and zipping + uploading is very annoing.
I really suggest you to use nuGet package manager to install library and use a source control version to get latest source code.