The cockatrice translation has been removed yesterday.

-updated and cleaned up cockatrice+servatrice svg's
-added old original svg's for future adjustments
-updated cockatrice+servatrice png's

ico+icns updates

-see #925 for more details
-updated svg's as source for new icon files

bmp updates

-updated svg's as source for new installer logos

cleaned up oracle.svg

cleaned up oracle.svg /2

svg updates /2

removed sensible data

`inkscape:export-filename` removed

removed sensible data

inkscape:export-filename

removed sensible data

inkscape:export-filename

removed sensible data

inkscape:export-filename

fix

fix2

- ico for win
- icns for mac
both now with several resolutions inside and high res support

mac version even included old+different logo

Requires #889

Additionally, remove an unneeded split() + join() call on every card
text

 * ignore .tx folder
 * cmake: when UPDATE_TRANSLATIONS=ON, extract new strings only to the
english translation file.
 * added info in CONTRIBUTING.md
 * updated english translations

Updated logo