Reset offset error clarification

[figuernd]

PhytO-ARM/src/phyto_arm/src/winch_node.py

Line 204 in 4e42095

server.set_aborted(text='Encoder position could wrap -- reset offset')

25 bit counter may suffer an overflow when this is triggered, solution is to login to JVL via MacTalk and reset position to 0. Error message should be updated to make this course of action more explicit.

[rgov]

Related to #22.