moved interface to interfaces folder
added desc comment
added comments, cleaned up code a bit
Changed name of random

Now reflects that it uses linux's random source.

You need to explicitly wire to RadomLinuxC to use it.
moved time interface to interfaces folder
added comment
another comment
adding comment explaining timing
Added more module specific debug prints
removed old interface
don't need old timer interfaces
moved uart interface to correct folder
bit bang uart doesn't work
cleaned up interrupt test
added uart test readme
removing test for code that no longer exists
added cc2520 errata
added notes about the hardware