bugfix: lib/sh/util.sh: command__exec(): need to restore $verbosity before calling die_e

bugfix: /Makefile: install: also need to run config/download to get the necessary passwords

config/Makefile: added download target

/Makefile: config: renamed to bin/install because config is the name of a directory

/README.TXT: Installation: `make install`: added instructions for what to do at each prompt

/README.TXT: Installation: Check out svn: need to install svn first as this does not come preinstalled on Ubuntu

fix: inputs/.geoscrub/geoscrub_output/geoscrub.csv.run: make(): added warning that this will truncate the geoscrub database tables

/README.TXT: to back up the local machine's hard drive: just do a single pass, to avoid the numerous different steps

backups/*retention_policy*: on jupiter: changed to avoid retaining backups further back, as these consume significant disk space on jupiter and are not useful for anything

fix: lib/sh/local.sh: $sync_remote_url: need $USER so user can be overridden when running as root

fix: /README.TXT: to back up the local machine's settings: to jupiter: need `sudo -E` for new Documents/BIEN/vegbiendev*/

/README.TXT: backups of ~/.dropbox/: just pause and resume Dropbox instead of quitting and restarting it

/README.TXT: to back up the local machine's settings: to Dropbox: exclude gmvault-db/ to save space in Dropbox

/README.TXT: to back up the local machine's settings: don't need to exclude ~/Library/Thunderbird/Profiles/9oo8rcyn.default/global-messages-db.sqlite because the disk that was corrupting this file has been replaced (#907)

/README.TXT: to back up e-mails: don't need to also sync aaronmk@nceas.ucsb.edu because these e-mails are also in aaronmk.nceas@gmail.com (auto-forwarded)

/README.TXT: Notes on system stability: removed no longer applicable warning about system upgrades, which is now incorrect because the disk space overrun bug (#887) was found not to have been caused by a system upgrade

web/links/index.htm: updated to Firefox bookmarks: Roundtable: added links for Roundtable on "obstacles faced by researchers who reuse, share and manage data, and strategies for overcoming them"

lib/Firefox_bookmarks.reformat.csv: label page's self-description as such: also support quotations enclosed in '

fix: exports/native_status_resolver.csv.run: added `users_by_name=1` to preserve the file group

added inputs/VegBank/run.call_graph.log

inputs/VegBank/run.log: updated for echo_vars() changes. the PG* vars, which contain important information, will now not need to be filtered out.

lib/sh/util.sh: echo_vars(): merge repeated flags so there aren't flags in between the vars (which is also not valid declare syntax)

lib/sh/db.sh: pg_cmd(): log vars on same line to avoid clutter

lib/sh/util.sh: echo_vars(): put all the vars on the same line so they don't clutter up the call graph generated at the default verbosity

web/links/index.htm: updated to Firefox bookmarks: Mac: added link for VNC client. extended attributes: added link for chflags.