boundary_transformation -> cmaes_boundary_transformation.

Accomplished via the following command on Ubuntu:
```
perl -p -i -e 's/boundary_transformation(?!\.)/cmaes_boundary_transformation/g' c-cma-es/* c-cma-es/src/*
```
Fix name of boundary_transformation in comment.
readpara -> cmaes_readpara.

Accomplished via the following command on Ubuntu:
```
perl -p -i -e 's/readpara(?!\.)/cmaes_readpara/g' c-cma-es/* c-cma-es/src/*
```
timings -> cmaes_timings
random -> cmaes_random
ERRORMESSAGE and szCat are marked static.

These functions were already declared static, but their
definitions weren't marked static.
Merge branch 'cmaes_namespace_again' of https://github.com/chrisdembia/c-cmaes into chrisdembia-cmaes_namespace_again

Conflicts:
	src/cmaes.c
Merge branch 'chrisdembia-cmaes_namespace_again'