Combine: Speedrun, Speed Run, Speed Running

Speed Run and Speed Running should probably be merged into Speedrun. The concept is the same...

Speedrun - http://www.giantbomb.com/speedrun/92-179/

Speed Run - http://www.giantbomb.com/speed-run/92-610/
Speed Running - http://www.giantbomb.com/speed-running/92-407/

fixed, thanks!