... column binding
simplify column binding further
move column binding to a method outside of the initialize-instance co…
…mbination so that the changed class find it.
add single float type
fill out package exports; key-slice -> keyslice
work on string/binary encoding variations
additional operators; place protocol class names in respective package.
revise api to permit simultaneous 0.6 and 0.7
another api alternative which distinguishes acces to literal columns …
…and attribute values
docstrings; add timestamp to the interface
change write interface from setf to set w/ plist
initial repository version for push; cassandra 0.6.3/2.1.0