Update NEWS and versions

Author: dagheyman

NEWS

@@ -1,10 +1,11 @@
-* Version 5.0.4 (unreleased)
+* Version 5.0.4 (released 2020-05-14)
  ** New app icons on all platforms
  ** Adjust the behaviour of the search bar, do not search accounts without having focus
  ** Bugfix: Fix keyboard shortcut to copy account code
  ** Bugfix: Show firmware version for YubiKey NEO correctly
  ** Windows: Show correct version number in .msi installers
  ** macOS: Fix issue with window positioning
+ ** macOS: Fix occacional crashes on startup
  ** Linux: Fix the app icon and desktop entry for the Snap package.
 
 * Version 5.0.3 (released 2020-04-14)

resources/com.yubico.yubioath.appdata.xml

@@ -36,6 +36,8 @@
   </screenshots>
 
   <releases>
+      <release version="5.0.4" date="2020-05-14">
+      </release>
       <release version="5.0.4-beta1" type="development" date="2020-05-11">
       </release>
       <release version="5.0.3" date="2020-04-14">

yubioath-desktop.pro

@@ -15,7 +15,7 @@ win32|win64 {
     VERSION = 5.0.4
 }
 # This is the version shown on the About page
-DEFINES += APP_VERSION=\\\"5.0.4-beta1\\\"
+DEFINES += APP_VERSION=\\\"5.0.4\\\"
 
 message(Version of this build: $$VERSION)