Multiverse Feedback: Virtual Booster

New OGW Mana    M  Creature – Eldrazi Devoid (This card has no color). Can someone add the new colorless mana symbol ?	Can't edit cards in Safiria    U  Ongoing Bug When using Chromium on Ubuntu 12.04, I cannot edit cards that I have created — instead I get the "We're sorry, but something went wrong" page.	Frequent Heroku errors?    U    I've been seeing a few Heroku errors on the page lately. It usually doesn't last, just half an hour or so, but it's a little odd. Wanted to ask about it in case it's slipped under the radar so far.	M15 flips are broken    U  Bug M15 flip cards render improperly, with the rare stamp jammed in the middle of the unflipped rules text, and the flipped P/T box trying to jump off the line.	Sort/show by Rarity buttons in Spoiler    C    It's probably been brought up and considered before, but I'd love the ability to show/hide cards of a given rarity in the Visual Spoiler, if not all relevant tabs.
Card transfer    C  System update – Suggestion Put a copy of target card from a set you own into another target set you own. This would allow set designers to store cards that aren't quite ready for set inclusion, or to "slide" cards from one set they're designing to another. Illus. SFletcher	Card history    C    When someone edits a card, they have the ability to comment on their change. I think it would be nice if there was some way to view older editions of a card as well, like on Wikipedia. That way, you could know what I used to have as flavor text here. ;)	More options in Export    C  Feature The export page should offer more options and a way to export a subset of cards. There's somewhat of a continuum between the skeleton, the cardlist, the visual spoiler, a hypothetical printer-friendly playtest slips page, and the plain-text and CSV export.	Colour indicator    C  Enhancement DFCs, Kobolds, Transguild Courier and so on now have a colour indicator. We should be able to do that in Multiverse too.	Unusual boosters    C    Options for a cardset to have boosters that don't follow the 10 C / 3 U / 1 R/M distribution, or that ignore rarity altogether. If the idea isn't too crazy, boosters with a number of cards different from 15 is cool, too.
Skeleton generation is broken    C  Bug "Generate skeleton" gives an error for all cardsets. I think line 295 of cardset needs fixing.	Details page for cardset edit guidance    C    Add a special details page title which will get embedded by the side of that cardset's create/edit card form.	Allow easier card links in comments    C  Enhancement The ability to link to other custom cards with (((triple parens))) could be enhanced. Allow (((C1234))) to link card ID 1234, and/or uniquely-named cards in other cardsets.	My Cards    C  Enhancement It'd be nice to have a global link to My Cards (i.e. ones the current user has created), or My Recent Cards, or something.	More features for advanced search    B    Can you please give more features for searching cards on the advanced search page? I'd like features that allow us to search by mana cost and colors of the cards. These features haven't been added yet, but it would definitely help a lot if we can search according to mana cost, converted mana cost and colors because I'd like to see all the WUBRG cards in this website, for example.

New OGW Mana (mythic)
Can't edit cards in Safiria (uncommon)
Frequent Heroku errors? (uncommon)
M15 flips are broken (uncommon)
Sort/show by Rarity buttons in Spoiler (common)
Card transfer (common)
Card history (common)
More options in Export (common)
Colour indicator (common)
Unusual boosters (common)
Skeleton generation is broken (common)
Details page for cardset edit guidance (common)
Allow easier card links in comments (common)
My Cards (common)
More features for advanced search (basic)