comment out ==Bag to solve it later
change listItem to List
modify keys M to Keys(M)
add createMap to subsitute Map in alloc.k
solve some problem with left hand side matching rules
solve problem with => . and . => where . is actually .Map/.Bag/.List
fixing the int2float by adding ieee standard
Merge pull request #6 from liyili2/java_rewrite_engine

Java rewrite engine