fix: inputs/SALVIAS/salvias_plots.~.clean_up.sql: Delete rows that do not satisfy foreign key constraints: also need to do this for plotObservations, since the refreshed data contains dangling rows for that as well

inputs/SALVIAS/run_: documented *.sql install runtime (3 min), as separate from the full `datasrc_make reinstall` runtime (3.5 min)

inputs/SALVIAS/run_: refresh(): `datasrc_make reinstall`: updated runtime. documented that runtimes are from starscream.

added inputs/SALVIAS/run_, which includes a refresh() target

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).

**/new_terms.csv, unmapped_terms.csv updated (using `make missing_mappings`)

bugfix: mappings/VegCore-VegBIEN.csv: main taxondetermination: use [!isoriginal=true] instead of [!isoriginal] so that adding a manual isoriginal field does not prevent this selector from matching

inputs/SALVIAS/projects/postprocess.sql: remove institutions that we have direct data for: documented that most of the 13139 removed plots are from duplicates (where we have direct data). this leaves only 560 of SALVIAS's original 13699 plots.

inputs/SALVIAS/projects/postprocess.sql: remove example data

inputs/SALVIAS/projects/postprocess.sql: remove private data that should not be publicly visible (this was probably already removed by the plotMetadata.AccessCode filter in salvias_plots.~.clean_up.sql)