WP v4 compat. `home_url()` requires scheme inside admin area. See: websharks/s2member#333
WP v4 compat. `like_escape()` deprecated in favor of `wpdb::esc_like()`. See: websharks/s2member#329
Merge pull request #340 from websharks/feature/329

WP v4 compat. `like_escape()` deprecated in favor of `wpdb::esc_like()`....
Preserve existing `.htaccess` if not writable. See: websharks/s2member#341
Reformat `constants.inc.php`. See: websharks/s2member#341 ~ See also: websharks/s2member#151
`@` suppression for CRON jobs. See: websharks/s2member#341
Reformat/cleanup `utils-time.inc.php` See: websharks/s2member#341 and #151
Merge pull request #342 from websharks/feature/341

Feature/341
Preparing release of v140921
Updating pro submodule pointer.