Upgrade project to libgdx 1.12.1

.gitignore

@@ -1,47 +1,82 @@
-## Java
+## Gradle:
+.gradle/
+gradle-app.setting
+/build/
+/android/build/
+/core/build/
+/lwjgl2/build/
+/lwjgl3/build/
+/html/build/
+/teavm/build/
+/ios/build/
+/ios-moe/build/
+/headless/build/
+/server/build/
+/shared/build/
 
+## Java:
 *.class
 *.war
 *.ear
 hs_err_pid*
+.attach_pid*
 
-## Robovm
-/ios/robovm-build/
-
-## GWT
-/html/war/
-/html/gwt-unitCache/
-.apt_generated/
-.gwt/
-gwt-unitCache/
-www-test/
-.gwt-tmp/
-
-## Android Studio and Intellij and Android in general
-/android/libs/armeabi/
+## Android:
 /android/libs/armeabi-v7a/
 /android/libs/arm64-v8a/
 /android/libs/x86/
 /android/libs/x86_64/
 /android/gen/
+/android/out/
+local.properties
+com_crashlytics_export_strings.xml
+
+## Robovm:
+/ios/robovm-build/
+
+## iOS:
+/ios/xcode/*.xcodeproj/*
+!/ios/xcode/*.xcodeproj/xcshareddata
+!/ios/xcode/*.xcodeproj/project.pbxproj
+/ios/xcode/native/
+/ios/IOSLauncher.app
+/ios/IOSLauncher.app.dSYM
+
+## GWT:
+/html/war/
+/html/gwt-unitCache/
+.apt_generated/
+/html/war/WEB-INF/deploy/
+/html/war/WEB-INF/classes/
+.gwt/
+gwt-unitCache/
+www-test/
+.gwt-tmp/
+
+## TeaVM:
+# Not sure yet...
+
+## IntelliJ, Android Studio:
 .idea/
 *.ipr
 *.iws
 *.iml
-/android/out/
-com_crashlytics_export_strings.xml
-
-## Eclipse
 
+## Eclipse:
 .classpath
 .project
 .metadata/
 /android/bin/
 /core/bin/
-/desktop/bin/
+/lwjgl2/bin/
+/lwjgl3/bin/
 /html/bin/
+/teavm/bin/
 /ios/bin/
 /ios-moe/bin/
+/headless/bin/
+/server/bin/
+/shared/bin/
 *.tmp
 *.bak
 *.swp
@@ -51,75 +86,78 @@ com_crashlytics_export_strings.xml
 .externalToolBuilders/
 *.launch
 
-## NetBeans
+
+## NetBeans:
 
 /nbproject/private/
 /android/nbproject/private/
 /core/nbproject/private/
-/desktop/nbproject/private/
+/lwjgl2/nbproject/private/
+/lwjgl3/nbproject/private/
 /html/nbproject/private/
+/teavm/nbproject/private/
 /ios/nbproject/private/
 /ios-moe/nbproject/private/
-
-/build/
-/android/build/
-/core/build/
-/desktop/build/
-/html/build/
-/ios/build/
-/ios-moe/build/
+/headless/nbproject/private/
+/server/nbproject/private/
+/shared/nbproject/private/
 
 /nbbuild/
 /android/nbbuild/
 /core/nbbuild/
-/desktop/nbbuild/
+/lwjgl2/nbbuild/
+/lwjgl3/nbbuild/
 /html/nbbuild/
+/teavm/nbbuild/
 /ios/nbbuild/
 /ios-moe/nbbuild/
+/headless/nbbuild/
+/server/nbbuild/
+/shared/nbbuild/
 
 /dist/
 /android/dist/
 /core/dist/
-/desktop/dist/
+/lwjgl2/dist/
+/lwjgl3/dist/
 /html/dist/
+/teavm/dist/
 /ios/dist/
 /ios-moe/dist/
+/headless/dist/
+/server/dist/
+/shared/dist/
 
 /nbdist/
 /android/nbdist/
 /core/nbdist/
-/desktop/nbdist/
+/lwjgl2/nbdist/
+/lwjgl3/nbdist/
 /html/nbdist/
+/teavm/nbdist/
 /ios/nbdist/
 /ios-moe/nbdist/
+/headless/nbdist/
+/server/nbdist/
+/shared/nbdist/
 
 nbactions.xml
 nb-configuration.xml
 
-## Gradle
-
-/local.properties
-.gradle/
-gradle-app.setting
-/build/
-/android/build/
-/core/build/
-/desktop/build/
-/html/build/
-/ios/build/
-/ios-moe/build/
-
-## OS Specific
+## OS-Specific:
 .DS_Store
 Thumbs.db
 
-## iOS
-/ios/xcode/*.xcodeproj/*
-!/ios/xcode/*.xcodeproj/xcshareddata
-!/ios/xcode/*.xcodeproj/project.pbxproj
-/ios/xcode/native/
+## Miscellaneous:
+*~
+*.*#
+*#*#
+/assets/assets.txt
 
-/ios-moe/xcode/*.xcodeproj/*
-!/ios-moe/xcode/*.xcodeproj/xcshareddata
-!/ios-moe/xcode/*.xcodeproj/project.pbxproj
-/ios-moe/xcode/native/
+## Special cases:
+
+## There is a resource-config.json file generated by nativeimage.gradle if you use Graal Native Image.
+## Some usage may need extra resource configuration in a different file with the same name.
+## You could also add that configuration to the text in nativeimage.gradle .
+## You should delete or comment out the next line if you have configuration in a different resource-config.json .
+**/resource-config.json