Document the new encodestring() and decodestring() functions.  Also, add some description of what the quotetabs argument does for the encode*() functions.  Finally, add a "see also" pointing to the base64 module.
Document the new encodestring() and decodestring() functions.  Also,
add some description of what the quotetabs argument does for the
encode*() functions.  Finally, add a "see also" pointing to the base64
module.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator