removed dependnce on UARTstdio

We used 3 functions from UARTstdio were : UARTgets, UARTputs, and Stdio init.
all three functions are simple, so I rewrote them.
I would like to point out that this is primarily to make linking of RASLib easier and to avoid '#include'ing a C source file.
Got uart.c compiling again
Cleaned up rasware.

Removed some unused files, added a few include paths
Created module for Pololu gpio based line sensors

- For Pololu QTR-8RC
- Integrated with RASLib
- Fully tested and working
- Timing values somewhat arbitrary, gives about 1.5 inches of range
Made linesensor.h polymorphic
Changed RASDemo to reflect new RASLib
completed function pointer idea
hidden to _, and created binary
Merge pull request #30 from ut-ras/fls_oop_suggestion

Fls oop suggestion
renamed LineSensorDemo, fixed inaccurate comment in linesensor.h
Merged our code with RAS's updated linesensor code, hooray.
Wrote working linesensor code

Holy shit.
The robot works.