Renamed list serialization test to serialize number test: going to create a series of other serialization tests using different elements.
Added ralph source to test serializing lists of text.
Added test case for serializing lists of text values.  Currently fails, because not handling deserialization correctly.
Added deserialization backend code for non-atomic lists of texts.
Extended deserialization files to handle atomic lists of text
variables.
Updated test cases to test against atomic lists of text variables.