add essential files for test
add test code for corrections for caloMET
add test code for corrections for pfMET
add two tests (commented out now)
add testInputFiles_cff.py (all lines commented out now)
fix a bug
uncomment commented out lines that speficy test input files by pickRelValInputFiles
activate two tests
Merge pull request #2625 from TaiSakuma/metdev-71X-140224_02_typeI

JetMETCorrections/Type1MET -- add test code for JetMETCorrections/Type1MET