Philips driver support changes

Hi Jim, thanks for supplying this library. For my Philips display, I made a few small changes:

1) A "swapColors" function that corrects the colors for Philips displays
2) Another #define for "PHILIPS" as well as keeping "PHILLIPS" for everyone else 

I also added the barest of wrap capability to the setText function. I don't care if this one makes it into the lib, but since I hacked it into mine, Git seemed to require it to let me move on. Sorry about that.

Thanks again,
Steve