added soft link creation step, not optional
hide createSoftLink in the scope of runOcamlLinking to prevent
usafe from outside of here
use Unix.symlink instead of Process.create for creation of the soft link
to a compiled executable
Merge branch 'create_soft_link_to_exe'

Conflicts:
	obuild/buildprogs.ml
Merge pull request #116 from UnixJunkie/master

fixes conflicts with master