Tectu/ChibiOS-LCD-Driver — pull request #19 by trsaunders (2012-07-25 17:46:28+00:00)
Title: lcdDrawChar from within worker

Reasons for change:
* lcdDrawChar is not thread safe as it included a static buffer
* lcdDrawChar has a not insignificant stack usage

So now lcdDrawChar is performed within the worker. some notes:

* added some internal functions so that worker threads can call e.g fillArea from within the worker. internal functions are not included in the header, and are prefixed with '_'.
* removed include of glcdWorker.h from glcd.h as this file is only needed by glcd.c and should not be 'global'