subscriptions 7.x-1.0-beta3

This is BETA3 of Subscriptions for Drupal 7.

BETA3 adds a number of important bug fixes that have accumulated since BETA2. We do not recommend using it on a production site yet, but we encourage you to test it and provide feedback (both good and bad!) in the issues queue. See #1172646-19: Subscriptions for D7 for details.

BETA3 has the following requirements:

1. Drupal 7.5 or later,
2. Mail Editor 7.x-1.0-beta2 or later,
3. Token 7.x-1.0-beta6 or later
4. Be sure to run update.php after installing it!

Upgrading from any ALPHA version: see the BETA1 release note for important information.

Changes since BETA2:
- #1438302: Disallow updating Subscriptions Mail (especially from D6!) if Mail Editor or Token are missing.
- #1438302 by Dmitriy.trt: Fix errors about missing tables on upgrade from D6.
- Fix crash when trying to preview a template and there is no suitable content.
- #1438432: Fix unincluded subscriptions_add_form() and _del_form().
- Add a note to the template page when running without comment.module.
- #1431850: Fix crash when previewing a template when running without comment.module.
- Hide references to comments from the Pages/Threads page when running without comment.module.
- #1431864: Fix exception on Pages/Threads page when running without comment.module.
- Avoid possible error when installing Mail Editor and Subscriptions Mail at the same time.
- #1422880 by DamienMcKenna: Allow other modules to alter the node options.