Updated Readme

Converted the README file from a .rtf file to a .md file to be
more inline with the Github conventions.

Rewrote the information to focus on stdbot's purposes and usage
instead of development and changelog.
Reorganized working directory

This reorganization takes two parts:

 - moving all the files up to the main directory

 - .gitignoreing all of the driver/ directory

This move will make the working directory cleaner and easier to
navigate for those unfamiliar with it. The .gitignore update will
also allow for driver versions to be updated and/or held back
without affecting the stdbot project.
Initial malloc() and free() implementation

Updated the malloc() and free() prototypes and return values to
match the prototypes and return values detailed by `man malloc`.

Implemented the functions malloc() and free() from stdbot_dmm.h.

The memmory manager works by giving out pointers to portions of a
long array of bytes, which can then be written to by the calling
program. No record of allocation exists, so allocated memmory can
not be released by free();
Merge pull request #1 from mfabel/basic_dmm

Implemented Basic Dynamic Memmory Manager