fixes uart implementation
adjust objcopy flags
fix: compilation with -mthumb flag for certain files
fixed missing stdint includes for all platforms

 * plus some minor include and prototype fixes for wsn430
Merge pull request #30 from thomaseichinger/uart_fixes

fix for the mc1322x uart
added missing header guard to native board.h
Merge pull request #36 from OlegHahm/include_fixes

fixed missing inttypes includes for all platforms