Fix default output type conversion check

As a great man once said, "this behavior is fundamentally wrong."

By default, a converter should match if its known output type is
compatible with the requested output type - not the other way around.

That is, it's OK to return a subclass of the requested type. Returning a
superclass is not guaranteed to be OK.

Author: hinerm

src/main/java/org/scijava/convert/AbstractConverter.java

@@ -100,7 +100,7 @@ public boolean canConvert(final Object src, final Class<?> dest) {
 	@Override
 	public boolean canConvert(final Class<?> src, final Class<?> dest) {
 		return ConversionUtils.canCast(src, getInputType()) &&
-			ConversionUtils.canCast(dest, getOutputType());
+			ConversionUtils.canCast(getOutputType(), dest);
 	}
 
 	@Override