add ifndef expression for CLING
add marked down quick start guide to README.md
add blank lines before and after code blocks
replace \(\"...\"\) with '("...")' in ROOT command line examples
add script that prepends GPLv3 header to all source code files
delete duplicate license file and prepend GPLv3 header to all source code files
Merge branch 'master' of github.com:delphes/delphes
fix ReadSTDHEP4 in classes/DelphesSTDHEPReader.cc
Merge pull request #1 from delphes/master

Update from original