xcproject
update prefixing configuration templates
skip external tool and aggregate targets
baproj - strip argument components
update baproj
classprefixer: refactoring and minor optimizations
if an xcconfig is already set and it's not ours, add include statement to our xcconfig
ability to add xcconfigs to a specified group in project and set them as the configurations
fix DEFAULT_ATTRIBUTES hash
removed regen_headers command
prefix_classes command now handles regenerating headers
xcproject