add the Makefile to the gitignore.
add the Makefile to the gitignore.

Since it might be generated from various things depending on what aspect of things you are building.

nathandunn/jbrowse,limeng12/jbrowse,limeng12/jbrowse,nathandunn/jbrowse,Arabidopsis-Information-Portal/jbrowse,Arabidopsis-Information-Portal/jbrowse,erasche/jbrowse,nathandunn/jbrowse,SuLab/jbrowse,Arabidopsis-Information-Portal/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,GreggHelt2/apollo-test,GreggHelt2/apollo-test,GMOD/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,limeng12/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,limeng12/jbrowse,nathandunn/jbrowse,Arabidopsis-Information-Portal/jbrowse,SuLab/jbrowse,GreggHelt2/apollo-test,igemsoftware/Shenzhen_BGIC_0101_2013,SuLab/jbrowse,limeng12/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,GreggHelt2/apollo-test,Arabidopsis-Information-Portal/jbrowse,SuLab/jbrowse,GMOD/jbrowse,GMOD/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,nathandunn/jbrowse,SuLab/jbrowse,erasche/jbrowse,GMOD/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,GreggHelt2/apollo-test,erasche/jbrowse,SuLab/jbrowse,GreggHelt2/apollo-test,limeng12/jbrowse,igemsoftware/Shenzhen_BGIC_0101_2013,erasche/jbrowse,SuLab/jbrowse,erasche/jbrowse,limeng12/jbrowse,GMOD/jbrowse,Arabidopsis-Information-Portal/jbrowse,erasche/jbrowse,limeng12/jbrowse,erasche/jbrowse,Arabidopsis-Information-Portal/jbrowse,erasche/jbrowse,GreggHelt2/apollo-test