Merge pull request #492 from Oldiesmann/release-2.1

Minor enhancements to drafts
#235: Separated out text strings for *_alert_none

Signed-off-by: ziycon <ziycon.eire@gmail.com>
upgrade.php css-layout fixes

Signed-off-by: illori illori@simplemachines.org
upgrade.php css-layout changes from antes

Signed-off-by: illori illori@simplemachines.org
maintenance mode requires errors.php

Signed-off-by: illori illori@simplemachines.org
admin.css remove images

Signed-off-by: illori illori@simplemachines.org
a few more css/layout changes for upgrade.php

Signed-off-by: illori illori@simplemachines.org
final changes, progress bar to match install.php

Signed-off-by: illori illori@simplemachines.org
Merge pull request #493 from ziycon/msg_alert_strings

#235: Separated out text strings for *_alert_none
Merge pull request #494 from illori/upgrade.php-css-layout-fixes

upgrade.php css-layout fixes
Merge pull request #495 from illori/maintenance-mode-fix

maintenance mode requires errors.php
Merge pull request #496 from illori/admin.css-remove-images

admin.css remove images - thanks to ARG for the fixes
Accounting for zero being a valid group

Signed-off-by: ziycon <ziycon.eire@gmail.com>
Merge pull request #497 from ziycon/comparison_check

Accounting for zero being a valid group
Merge pull request #498 from Oldiesmann/release-2.1

Some tasks weren't enabled by default
Merge pull request #501 from Oldiesmann/release-2.1

Trying to output JS variables in HTML doesn't work too well
Merge pull request #503 from Oldiesmann/release-2.1

Fix some bugs with the quick edit feature
Merge pull request #504 from Oldiesmann/release-2.1

Redirection topics should be marked as read when clicked
Merge branch 'release-2.1' of https://github.com/Oldiesmann/SMF21 into release-2.1
Typo

Signed-off-by: Michael Eshom <oldiesmann@oldiesmann.us>