Projection unbinding has been added.
solved the problem of drity read caused by data Re-Load()
before with with wangli
Merge remote-tracking branch 'liwang0926/master'

Conflicts:
	conf/config
support datetime but not be tested!
Merge remote-tracking branch 'fzh/master'

Conflicts:
	Server.cpp
	Test/TestMain.cpp
	conf/config
Merge remote-tracking branch 'dsc/master'

Conflicts:
	Catalog/Partitioner.cpp
	Config.cpp
	Loader/Hdfsloader.cpp