moved everything into /trunk/ to create the standard svn layout, for use with tools that require this (eg. git-svn). IMPORTANT: do NOT do an `svn up`. instead, re-use your working copy's existing files with `svn switch` (http://svnbook.red-bean.com/en/1.6/svn.ref.svn.c.switch.html).

waitpid, lockfile: Changed $interval default to 5s to work with smaller imports, where less waiting is needed

waitpid: Use `ps` instead of /proc to also work on Mac

Added waitpid