metatag 7.x-1.17

This is primarily a bugfix release, the main feature change is related to fixing & improving the mask-icon meta tag. It is a recommended update for all sites.

Full changelog since v7.x-1.16:

• #2748627 by jalpesh: Corrected twitter:app:id:googleplay description.
• #2752319 by DamienMcKenna: Fixed output of the mask-icon meta tag.
• #2752319 by DamienMcKenna: Added the mask-icon 'color' attribute, the new 'url' option for meta tag definitions, and tests for the mask-icon meta tag.
• #2754263 by DamienMcKenna: Meta tags with multiple values should still be returned as a string from metatag_get_value().
• #1953080 by DamienMcKenna: Don't output language/locale meta tags if they are equal to LANGUAGE_NONE/"und".
• #2659906 by DamienMcKenna: Rewrote update 7040 to use less memory and work better.
• #2720723 by IRuslan: Allow config instance names to be changed.
• #2669592 by DamienMcKenna: Fix for possible problem with removal of meta tags that Metatag is already outputting.
• #2162397 by DamienMcKenna: Added test dependency for Profile2.
• #2162397 by roderick, DamienMcKenna, hideaway: Fixed loading multiple entities on the same path when at least one of them is not enabled for use with Metatag and gets in the way of the one which is enabled.