and save them in cards.xml

Gray out "only buddies/only reg users" in the “create game” dialog if
the user is unregistered

fixes #411

+ Card searches now do partial string matches, rather than needing to
match the beginning of the string.

Should fix #412

- Removed comments as-per request

- removed unused commented out code

+ removed getters and setters comment

+ Updated DELTA variable to more suitable name:
ROTATION_DEGREES_PER_FRAME

+ Added additional comment explaining what DELTA is.

Removed inline logic to static variable, slight performance increase.

Wasnt happy with the first gradient, too much white. Now uses 2 shades
or purple.

+ Added a fade to inactive players TableZone
+ Refreshed TableZone, HandZone and DeckView  default background colors

+ Cards now animate smoother and faster
+ removed redundant computations performed each frame

+ changed from 50ms to 25ms between update calls.

Looking at the client I saw the cockatrice was still on the card back. I
have now removed it.

Removed some unused resource files.

They are needed to fetch prices from deckbrew and possibly, in the
future, for ssl server connections

For some reason there was an issue with making the creature image white,
i found a workaround. Icon should now display correctly.

+ added updated mac icon that was missing
~ resized cockatrice.png

~ Updated the back of the card, cleaner lines, slightly more modern.
~ Updated game icon/logo

I added a check to see if the event PT is empty, if it is, we try and
use the PT from the cards.xml. In resp to issue #330.