Child Node Tests. Fixed collision bug. Fixed Bugs.

Wrote functional tests for child nodes (fixed bugs along the way).
Added Doc Strings.  Verified on Rev1 Hardware.  Added
formatUserProfileMemory API to format user profile memory section
(starting parent + 16 favs).  Fixed handle bug.  Fixed
readStartingParent API to actually read.   Fixed the possibility of
collisions by not allowing parent nodes and child nodes to occupy the
same page in memory.  Switched most of the API to use the pNode and
cNode nodes in the handle (shared buffer if you will).
Added README's for FLASH and NODE Libs