Correcting and Decreasing the Size of Returns

We don't really need 16-bit integers when we're working with
single-digit binary numbers. -_-
Also, setup doesn't return anything and I can't really think of any
value I really want it to return. Hence, I will make it a void function
instead. :)
Set Output Function Implementation

Implements set output function to set which pin outputs the signal.

Note that I used an addition operation instead of a bitwise OR
operation. This is because MSP430 community coding convention prefers
addition operations over bitwise OR operations. Otherwise, they should
functionally be the same.

If anyone with an MSP430 is willing to test which one is faster, please
feel free to do so and show me the results so I can change the
appropriate code. For now, I will stick to the community convention.
Update openirt.h
Fix Some Spacing

Earlier change was for last end line. -_-
Unnecessary Spacing Eliminated

A Whole Lot of Spacing that we didn't need go to the unknown...

On a more relevant topic, spaces where there are no non-whitespace characters are stupid and, therefore, must be eliminated.

Whitespace delenda est.

QED
Merge pull request #2 from hydroArgentum/MSP430

Set Output Function Implementation and Small Enhancements