bunch of warnings fixed

src/core/proteinxtp.cpp

...entification_run_list_view/msidentificationtablemodel.cpp

src/input/pepxmlsaxhandler.cpp

src/input/xtandemsaxhandler.cpp

src/input/xtpxpipsaxhandler.cpp

src/output/exportfastafile.cpp

src/output/mcqr/mcqrscpeptide.cpp

src/output/mcqr/mcqrscprotein.cpp

src/output/proticdbml.cpp

src/utils/httpversion.cpp