- AVR32 platform converted to use the new build system
- new section in configuration: 'build'. Used to set predefined
build parameters (such as allocator, target, boot mode...)
- LPC288x platform converted to the new build system
- changed generation for the 'extmem' attribute
- added combined attributes (validated against two or more possible types)
- more build configuration attributes (allocator, target)
- more sanity checks
- more color in the builder
- 'romfs' is now a separate builder target, not a function being called separately
- added mappings for the configurator attributes