Converted plugins to use the new supportsExtension()/supportsOptions/supportsProtocl() methods

to help enable better querying of supported features

src/osgPlugins/dae/ReaderWriterDAE.h

@@ -15,15 +15,11 @@ class ReaderWriterDAE : public osgDB::ReaderWriter
 public:
     ReaderWriterDAE()
     {
+        supportsExtension(EXTENSION_NAME,"COLLADA 1.4.x DAE format");
     }
 
     const char* className() const { return "COLLADA 1.4.x DAE reader/writer"; }
 
-    bool acceptsExtension(const std::string& extension) const
-    { 
-        return osgDB::equalCaseInsensitive( extension, EXTENSION_NAME );
-    }
-
     ReadResult readNode(const std::string&, const Options*) const;
 
     WriteResult writeNode(const osg::Node&, const std::string&, const Options*) const;