[fixed]Unknown Shores & others not recognised for colorless

[Aswan jaguar]

Describe the Bug:
Some lands like Unknown Shores,Shimmering Grotto and Phyrexian Tower which is different don't work well when casting or activating colourless cards.Are not recognised by engine as colourless mana producing lands so cards don't get highlighted as cast-able or activate-able unless you put colourless mana in mana pool in advance.This happens with cards that need colourless mana to cast like Endbringer and colourless mana to activate as Blinding Drone.
* This doesn't happen with Adarkar Wastes,Mirrodin's Core for instance.

Which card did behave improperly ?
Unknown Shores,Shimmering Grotto & Phyrexian Tower (and probably a lot more).

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
Manalink 2016/08/27: Eldritch Moon v2, duel

What exactly should be the correct behavior/interaction ?
Unknown Shores,Shimmering Grotto and Phyrexian Tower are recognised by spells and activated abilities as colourless generating lands.

Are any other cards possibly affected by this bug ?
Probably this affects also Holdout Settlement and Sliver Hive which though have bigger issue as they don't produce colourless mana at all.

[Aswan jaguar]

Fixed Holdout Settlement, Unknown Shores, and Shimmering Grotto in commit a85fc737.

[Aswan jaguar]

Fixed correctly Unknown Shores and Shimmering Grotto also Phyrexian Tower this time in commit 3565ef9.