web/links/index.htm: updated to Firefox bookmarks. git: added instructions to migrate from svn.

web/links/index.htm: updated to Firefox bookmarks. git: added instructions to migrate from svn.

web/links/index.htm: updated to Firefox bookmarks. added instructions for running `svn switch` after moving everything into /trunk/ (for us, use `svn switch --force https://code.nceas.ucsb.edu/code/projects/bien/trunk # runtime: <1 min`).

web/links/index.htm: updated to Firefox bookmarks. added instructions for running `svn switch` after moving everything into /trunk/ (for us, use `svn switch --force https://code.nceas.ucsb.edu/code/projects/bien/trunk # runtime: <1 min`).

/: re-set svn:ignore on new root (/trunk/)

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).

added standard svn dirs branches, tags, trunk

web/links/index.htm: updated to Firefox bookmarks. added links to the sPlot ERD. Dropbox: added information about a missing upgrade notification when you use the Dropbox client to look up a file on the Dropbox website.

/README.TXT: added note that shell scripts should always be read-only, so that editing them while an import is in progress will not crash the import (see http://vegpath.org/links/#**%20modifying%20a%20running%20shell%20script)

/: svn:ignore the new extern/ dir, which will contain non-UCSB files