xrootd,xrootd-toolfile: revert back to CMSSW_7_0_0_pre1 state

Signed-off-by: David Abdurachmanov <David.Abdurachmanov@cern.ch>
Merge pull request #152 from davidlt/revert-xrootd-700pre1-state

[CMSSW_7_0_X] xrootd,xrootd-toolfile: revert back to CMSSW_7_0_0_pre1 state