Renaming output files to make easier to navigate. Minor correction in dataset_info_7TeV.
Some script updates (filepaths, names etc.) in preparation for running on new 53X histogram files.
updating the bin/ scripts
Fixing and updating 98_fit_cross_checks.py according to changes in recent months in DPS.
Updating scripts for merging histogram files in line with latest filepaths, to read from hdfs etc.
Merge pull request #131 from jjacob/master

Various changes to scripts required during processing of v11 nTuples.