web/username_prefix.php: word-wraps: renamed to linewraps

web/username_prefix.php: added support for word-wraps of the form x_-_.y@url -> x.y@url (the _ are needed to work in Google spreadsheets)

bugfix: web/username_prefix.php: comments: need to use syntax that doesn't use : because Firefox will not update the "password" for the website with the new value after the : . the new syntax use () instead.

web/username_prefix.php: comment prefixes: support embedded ":" in comment

schemas/VegBIEN/VegBIEN data dictionary.xlsx: updated: populated some definitions from VegCore data dictionary where available

bugfix: schemas/VegBIEN/VegBIEN data dictionary.xlsx: updated: restored "" that had been stripped out when the data was copied out and pasted back, due to a bug in Google spreadsheets. prepended : before initial " as a workaround to prevent the " getting stripped out again.

schemas/VegBIEN/VegBIEN data dictionary.xlsx: updated

schemas/public_.sql: analytical_stem_view: applied data dictionary renamings, using the steps at wiki.vegpath.org/VegBIEN_schema_refactoring#apply-data-dictionary-renamings-to-database

web/username_prefix.php: user2path(): comment prefixes: documented how to put the comment on a separate line when word-wrapping (c-_:x@url). this format works in Google spreadsheets.

web/username_prefix.php: user2path(): comment prefixes: documented how to put the comment on a separate line when word-wrapping (c-_:x@url). this format works in Google spreadsheets.