Modified the SassAndCoffeeRuntime so that it creates a new IEJavaScriptRuntime and disposes of it right after execute
This gets around the COM exceptions. Looks like running multiple exceutions against the same runtime isn't working so well.
Later on we can look at sharing at least the files for a single request as soon as we have some lifetime management in here
Issue #60
Merge pull request #61 from nathanpalmer/com-exceptions

Modified the SassAndCoffeeRuntime so that it creates a new IEJavaScriptR...
Removed the static on _padLock
Added a task to run the nuget push command for every package created
Added an iconUrl
Added a projectUrl to the nuget package
Added the project url to the right place