Make i18n:generate more flexible

Sylvia/documentation/bld 801

Change order of tags (now alphabetical); add link list at beginning of document

Added an alt tag to the footer logo; added charset meta tag; moved

Add '' default to bodyclass in courseware templates

Prepend theme template paths

Jarv/db env override

Add periodic table and molecule editor to Additional Tools

Teach install-system-req.sh about `brew bundle`

make LMS accordion and progress datetime display respect settings.TIME_ZONE

Update i18n coding guidelines

fixup create-dev-env.sh

Make assets:coffee a dependency of i18n:extract

Minor test cleanup

Stop using JavaScript to set the body's CSS class

Pull THEME_NAME from envs tokens if it's there.

DOCTYPE to the top of the file.

add missing people to AUTHORS

Currently just coerces the time displayed for due dates
(accordion.html and progess.html) to settings.TIME_ZONE

Skip page check in promise for Tab Nav in bok-choy suite

Disabled flaky JS transcript test

Now normal i18n:generate doesn't care about missing files, and
i18n:generate_strict does.  The robot task calls the strict version.

There may well be a better way to make the two tasks, but my Ruby+Rake
skillz are weak, and it's all going away soon.

If the FEATURES['USE_CUSTOM_THEME'] flag is set but the
'THEME_NAME' is not set.  We get a compilation error during
cms gather assets.

Added back in component header visual separation from component renderin...

Make receipt-ids actually generate UUIDs

Peer-grading acceptance tests