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).
planning/timeline/timeline.2013.xls: renamed to timeline.xls so that this can continue to be used for 2014 (leaving a symlink from the old filename to preserve permalinks)