andygock/glcd — pull request #1 by Mircho (2012-12-18 13:28:28+00:00)
Title: AVR initialization and PCD8544 contrast fixes

As I started using the library found few small issues that I fixed:
- initialization of the SS pin should be done for all devices
- the void glcd_set_contrast(uint8_t val) method for PCD8544 had some wrong ORing instead of ANDing