fix new instance bug in readHeadInfo
use getThatReadSeq instead of getThisReadSeq
fix bug in readFiled() and getreadSeq(), and getMateSeq()
change name from getThatReadSeq() to getMateReadSeq()
change name from thatReadSeq to mateReadSeq
fix the bug for supporting single read
clean legacy code
remove uesless code
rm system.out.println()
complete hyracks test
fix the bug for forgetting add the byte length 1 in getLength() due to the activeField
change genomix-hadoop to be consistent with our new genomix-data
hadoop test passed!
change the name of readHeadSet
change graphstatics to remove the readId in it
genomix-hyracks test passed!