bugfix: inputs/CVS/plot_/postprocess.sql: locality: site_name should come before directions_to_place because it is at a higher level of granularity

bugfix: **/postprocess.sql: don't use the public schema, because this creates an unsatisfied dependency while the database is being installed, and breaks `make install`

inputs/CVS/plot_/postprocess.sql: add unique constraint on locationName (analogous to the unique constraint in plot), for use by inputs/VegBank/plot/postprocess.sql in removing inter-datasource duplication

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).

inputs/CVS/cvs.~.clean_up.sql: remove plot.realLatitude/realLongitude, since this is private data that should not be publicly visible

fix: inputs/CVS/plot_/postprocess.sql: locality: include the site name (authorLocation), because this is part of the unique specification of the place that was sampled, and Bob wants this to be included in VegBIEN

fix: inputs/CVS/plot_/map.csv: PARENT_ID: remapped to UNUSED, to clarify that subplots are not implemented through this field

inputs/CVS/: don't import joined tables, because they are now imported in the taxon_observation.** left-join instead

inputs/CVS/: prepended the table name to each column name to prevent column collisions, using the steps at http://wiki.vegpath.org/Left-joining_a_datasource

inputs/CVS/: switched to new-style import, using the steps at http://wiki.vegpath.org/Adding_new-style_import_to_a_datasource