add weights to products, start on update LHE event products
correctly parsing weights information in events
first working version
first actually working version :-)
validated
remove double usage of boost
add originalXWGTUP() to LHEEvent and LHEEventProduct so that reweighting is less cumbersome
Merge pull request #2101 from lgray/store_lhe_original_xwgtup_62X_SLHC

add originalXWGTUP() to LHEEvent and LHEEventProduct 62X_SLHC edition