Updated streaming scripts. Compiler compatibility for _delay_ms().

- Moved obsolete streaming scripts to folder for reference.

- Added a more complex Python streaming script which uses the serial
buffer as an additional streaming buffer.

- Removed all references to a _delay_ms(variable) to allow for better
porting across different compilers.

script/Obsolete/stream

@@ -0,0 +1,2 @@
+#!/usr/bin/ruby
+require 'script/stream'