Fixes for feed update date bugfix.
Fixing feed update dates (#1587101).
Adding default value for "score" column (fixes crashes).
Defaulting get_current_page() to start page.
Moving quote_score_calculation_mode to [general].
Microsummaries bugfix.
Fixes for browsers without <canvas> support.
Cosmetic fix.
Fixing some warnings.
Ignoring captcha images in version control.