Code portability cleanup.
-rw-r--r-- 1219 .gitignore
-rw-r--r-- 10391 LICENSE.md
-rw-r--r-- 2245 NOTICE.md
-rw-r--r-- 8447 Readme.scons.txt
-rw-r--r-- 2040 SConstruct
-rw-r--r-- 1448 arduino.scons
-rwxr-xr-x 3025 auto_build.sh
drwxr-xr-x - build_common
drwxr-xr-x - examples
drwxr-xr-x - extlibs
-rw-r--r-- 2201 extra_options.scons
drwxr-xr-x - resource
-rw-r--r-- 10525 scons_script_how_to.txt
drwxr-xr-x - service
drwxr-xr-x - tools