Ported to MacOS X
Remove build log message.
Refactor save_pid_file().
Add recursive harvest loading.

Add support for recursively loading harvest files throughout a directory
structure. Recursive behavior is triggered by the flag "-r", the default
being non-recursive loading.
Merge pull request #1 from KWARC/master

Update Latest change from KWARC
Merge branch 'master' of https://github.com/physikerwelt/mws