#110621: Removed base _createStyles function, which allows us to check if the function exists
#110621: Added support for indicating the type of request made to retrieve the features.
Merge pull request #81 from luisromangz/110621-FixesAndImprovementsInFeatureLoadingAndStyles

110621 fixes and improvements in feature loading and styles
#110621: Try fixing reload of WMS layers.