Document.load() Remove the error code parameter.

Document.load() Remove the error code parameter.

	* src/main/java/org/glom/web/server/libglom/Document.java: load():
	Remove the parameter. We do not set it yet and it could never have
	worked as an output parameter (though maybe it did in java-libglom).
	We could use an exception if we really want the failure reason.
	* src/main/java/org/glom/web/server/OnlineGlomServiceImpl.java:
	init():
	* src/test/java/org/glom/web/server/libglom/DocumentTest.java:
	setUp(), testGetSuitableTableToViewDetails(): Adapt.