get rid of old class to generate register statements
get rid of risky UDF functions (cumulative sum and count,  both of which can be done scalably,  believe it or not;  move remaining I/O UDF into Bakemono JAR
(actual sieve3 Spring restore and move UDF)
add pig dependency to bakemono so we can add a UDF,  also remove chopper from reactor because now there isn't any Java in it
resolve #36 -- added error message in case where centipede shell doesn't recognize first command