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).

bugfix: lib/runscripts/view.run: don't do anything in load_data(), to avoid trying to remake header.csv before the view is created. (for views, this instead happens in postprocess().)

bugfix: lib/runscripts/*: calls to rm: use `rm -f` instead to avoid an error (which aborts the program) if the file does not yet exist

bugfix: lib/runscripts/view.run: remake_VegBIEN_mappings(): also need to remake header.csv, not just map.csv as for tables, because view columns may change when the view is regenerated

added lib/runscripts/view.run, for use with table subdirs for views, such as inputs/FIA/occurrence_all/