fixed more failed test cases in AdminTest
fixed more failed test cases in AdminTest

migue/voltdb,simonzhangsm/voltdb,VoltDB/voltdb,deerwalk/voltdb,VoltDB/voltdb,deerwalk/voltdb,deerwalk/voltdb,migue/voltdb,simonzhangsm/voltdb,simonzhangsm/voltdb,migue/voltdb,VoltDB/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,simonzhangsm/voltdb,simonzhangsm/voltdb,migue/voltdb,VoltDB/voltdb,deerwalk/voltdb,migue/voltdb,migue/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,VoltDB/voltdb,migue/voltdb,deerwalk/voltdb,VoltDB/voltdb,migue/voltdb,VoltDB/voltdb,simonzhangsm/voltdb,deerwalk/voltdb