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`).
/: 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
