Add write-separator-array generic and methods to support separation multiple collections
Add write-separator-field-name generic and methods to support key/value serialization
Add write-separator-object generic and methods to support serialization of object with multiple key/value pairs
Add a write-field method for sexpr-serializer since it needs to be surrounded by parens
Minor style changes
Merge pull request #1 from abeaumont/master

Make serialization library pass whole testsuite