added support for string array options in SXRenderer
Scene shape component names

SceneShapeInterface::componentNames() and SceneShapeInterface::selectionName() now automatically refresh the gl scene when they're called, in case they get called before a maya viewport refresh has happened
Merge pull request #276 from davidsminor/sceneShapeComponentNames

Scene shape component names
Merge pull request #278 from davidsminor/sxStringArrayOptions

added support for string array options in SXRenderer