build.rb: shebang changed to work on all platforms
build.rb: shebang changed to work on all platforms

jamoma/JamomaCore,eriser/JamomaCore,jamoma/JamomaCore,eriser/JamomaCore,eriser/JamomaCore,jamoma/JamomaCore,eriser/JamomaCore,jamoma/JamomaCore,eriser/JamomaCore,eriser/JamomaCore,jamoma/JamomaCore,eriser/JamomaCore,eriser/JamomaCore,jamoma/JamomaCore,jamoma/JamomaCore