Cleaned up various fragments and fixed a compilation error that occured when switching metric container.

Fixed a wrapping problem in the ETX EWMA calculation.

Corrected the multiplier of the link metric, and simplified the configuration
so that the user does not need to specify the multiplier.
Rearranged some expressions to avoid triggering a cc65 bug.
Merge pull request #376 from oliverschmidt/master

Rearranged some expressions to avoid triggering a cc65 bug.
Finetuned Atari XL memory layout.

The Telent server includes both uIP logging and uIP client functionality. Therefore uip.o is somewhat larger.
Merge pull request #377 from oliverschmidt/master

Finetuned Atari XL memory layout.
Final adjustments for the switch from 'atari' to 'atarixl'.
Merge pull request #378 from oliverschmidt/master

Final adjustments for the switch from 'atari' to 'atarixl'.
Merge pull request #361 from nvt/rpl-mrhof-fix

MRHOF fixes