20140116 backport use first as default, protection for gluon code
add originalXWGTUP() to LHEEvent and LHEEventProduct so that reweighting is less cumbersome
added protection against abcence of g4SimHits
Merged refs/pull/2116/head from repository cms-sw
minor
do not force g4SimHits mode
add new script to run pre-compiled powheg
xml check added to cmsLHEtoEOSManager.py
set mode a+x
added fragment for Z2starLEP tune
Merge pull request #2197 from vciulli/53X_z2starlep

added fragment for Z2starLEP tune
Merge pull request #2177 from vciulli/53X_lhe_scripts

53 x lhe scripts
Merge pull request #2146 from civanch/2116

 Protection included in custom fragment for reprocessing
Merge pull request #2144 from fabiocos/53XPdfWeight

53X back-port of Pdf Weight modifications
Merge pull request #2100 from lgray/store_lhe_original_xwgtup_53X

add originalXWGTUP() to LHEEvent and LHEEventProduct 53X edition