CBIORecv/Send are only assigned once.
IOCB_ReadCtx/WriteCtx only assigned once.
BuildMessage checks output and input wiht sizeOnly every call - state
machine doesn't cache these.
Renamed alias_tbl variables to something unique.
Other cppcheck fixes.
Also reworked pem_read_bio_key().
* Fix include.am missing line
* Fix macros
* Add "static" keyword where needed
* Make compatible with MSP430 GCC
* Add MSP430 GCC Makefile
* Fix watchdog issue with GCC, also fixes IAR when large data model is
used
* Fix comment style
* Fix typo in RNG (makes it ever so slightly more random)
* Add example output to README
