disable building of X11 on OS X (--disable-cocoa); patch to ROOT 5.34 for Yosemite compatibility
correcting typo, GEANT3_LIBRARY_DIR was not expanded because of missing '$'
adding AliRoot, FairRoot, DDS and config.cache to .gitignore
correcting typo: '$' needed to expand variable 'install_prefix'
make sure that root is compiled again if newly cloned, even if the executable is already in the install folder
adjusting AliRoot version according to the change of branch name from 'splitdev' to 'feature-splitdev'