Update dep versions
-- Updates of install scripts to more recent versions of gcc, lhapdf, yaml. Tested on ubuntu and nafhh-herafitter. -- Fix that checkforpdf is called only when LHAPDF-like style is used.
-- Updates of install scripts to more recent versions of gcc, lhapdf, yaml. Tested on ubuntu and nafhh-herafitter. -- Fix that checkforpdf is called only when LHAPDF-like style is used.