web/username_prefix.php: remove padding used to visually separate elements: documented that this also removes a leading __ that indicates an internal field

web/links/index.htm: updated to Firefox bookmarks: Quick links: added VegBIEN data dictionary spreadsheet, TNRS data dictionary.

fix: web/username_prefix.php: transposes: changed recommended syntax to y~x@url so that _y~ lines up vertically with [y] paths

web/username_prefix.php: removed special category comments syntax because this is now handled by transposes and insertion comments

web/username_prefix.php: added support for transposes ( y~x_@url -> x_y@url , Y~x@url -> xY@url ), which can be used to put the category in a column name first without duplicating the category

web/username_prefix.php: removed linewraps code because Google spreadsheets no longer supports wrapping on a - , and because a shorter syntax for category comments is now available

web/username_prefix.php: category comments: moved _-_ outside [] in comparison example since it will be deleted separately

bugfix: web/username_prefix.php: category comments: need /__/ around regexp

web/username_prefix.php: category comments: added support for a shorter syntax than [x_-_]y@url : x+y@url -> y@url

schemas/vegbien.ERD.mwb: updated