NEW: New troubleshooter extension.
ADD: Improved modules management.
ADD: Improved database migration.
FIX: Fix a bug in updates mechanism.
FIX: Fix some bugs in Basic template.
FIX: Fix a bug in reCaptcha invisible.
NEW: New hooks (filters).
Minimum required version of PHP bumped to 5.5 instead of 5.4.
Minimum required version of WordPress bumped to 4.6 instead of 4.0.