RIOT-OS/RIOT — pull request #224 by mehlis (2013-09-25 13:52:54+00:00)
Title: minimize stacksize of the idle thread

with this patch activated:

```
2013-09-25 15:28:40,807 - INFO # > ps
2013-09-25 15:28:40,816 - INFO #	pid | name | state Q | pri | stack ( used) location | runtime | switches
2013-09-25 15:28:40,824 - INFO #	0 | idle | pending Q | 31 | 256 ( 152) 0x40000010 | nan% | -1
```