Work in progress fix for DiagrammedAssertions when used with code block.
Added the correct way to detect for by-name parameter, and all tests are passing now.
Fix Scala 2.10 build problem in DiagrammedExprMacro.
Changed to use Eugene Burmako's paramss method in DiagrammedExprMacro.
Merge branch 'diagrammed-assertion-fix' of https://github.com/cheeseng/scalatest