extern "C" when hubo-ach is used in C++ projects.

This allows c++ projects to use functions from hubo-ach as well as
data structures, variables, and definitions.
changed all struct hubo_xxx to hubo_xxx_t
added __attribute__((packed)) to struct to try to fix achd
added remote connections director
re-ordered elements
added sudo chmod 777 /dev/shm/achshm-hubo-* to make
added __attribute__((packed)) to ref chan
added kill achd to hubo-ach script
added make remote
added kill remote
Merge branch 'fix/extern-c' of https://github.com/saulrh/hubo-ach into merge/externC
Changed log
enabled current
added current formula
current working now a 100hz.  need to make curent not update as fast
now will pull state and push cmd and ref
added python stuff
modified the python to match the new hubo.h
added auto tools for python
added python path to Makefile.am