CMake: Add "test" target

Uses the built in cmake -Dtest=ON

It should download googletest on the fly if needed.

Adds a new make target, `make test`

Ref #167

Fix appveyor builds

dropping jom and using plain nmake

Fix qt libraries bundling on osx

Fix volume control

fix #1547

Travis changes for package creation

Revert focus policy change

added appveyor badge to README

badge for master branch

Appveyor: fix artifact names

Fixes #1529.

Completely untested, because I don't think this could possibly interfere with anything. It's a straight revert.

Added appveyor script

fix #1528

Crash Fix: Removed mod notification code that causes crashes

Corrected mod_name column syntax in warnings table

It was missing a comma at the end of the line.

Updated cockatrice_warnings table to use id column as primary key

Revert "Reimplemented PictureLoader as a singleton"

Reimplemented PictureLoader as a singleton

Added logs tab to allow moderators the ability to review log history

Added official warning messages moderators can use to inform users

 * Removed remaining picture handling from card database and cardinfo
 * removed the “noCard object” hack

Fix crash on loading invalid cards.xml

Restore shortcuts