Ignored @startuml and @stopuml annotations

PlantUML (http://plantuml.sourceforge.net/), a tool for text based UML diagrams that can be added in-line in the code uses
@startuml and @enduml annotations. It would be great to be able to put those inside a docblock.
Merge pull request #34 from hboomsma/patch-1

Ignored @startuml and @stopuml annotations