changed network.c network.h for kstr
fix mistakes
fix mistakes
merge
merger from cpp-version
add cursor
add showwordbook
fix in db.cpp and db.h
fix mistakes
clean old code
add help info
add parse args error info
add a operator()
fix in printWord
update the README
add new method __get as the basic of get and operator()
fix join
add utilstest
add dumpVector
fix a bug in join