gmoccapy_0_9_8_1 - new serbian translation

ver. 0.9.8.1
- new serbian translation

Signed-off-by: Chris Morley <chrisinnanaimo@hotmail.com>
halmodule: improve error message: invalid length of pin name

Users got an unhelpful general error message.
Now: 'hal.error: Invalid pin name length: max = %d characters'