Missed two kotlin classes

- 01 kotlin/aceyducey.kt
- 85 kotlin/Synonym.kt

Move repository declaration and plugins in into main build.gradle.kts.

All subproject build.gradle files are now much smaller, and identical.

buildJvm/README.md

@@ -10,7 +10,7 @@ Build all the games:
  ./gradlew -q clean assemble installDist distributeBin distributeLib
 ```
 
-Then, run a game
+Then, run a game:
 
 ### Mac or linux:
 ```shell
@@ -56,21 +56,17 @@ local clone to point to your new forked project.
 ## Adding a new game
 
 These are build scripts for all JVM games contributed so far.
-New games can be added by:
-- Creating a `build_NUMBER_NAME_[java/kotlin]` directory
-- Adding a `build.gradle` file to that directory. 
-All `build.gradle` files under `build_NUMBER_*` should be nearly identical, unless
-there is some special requirement.
-- Adding a `gradle.properties` file to that directory, defining the source
+New games can be added:
+- Create a new `build_NUMBER_NAME_[java/kotlin]` directory
+- Add a `build.gradle` file to that directory. 
+All `build.gradle` files under `build_NUMBER_*`  are identical.
+- Add a `gradle.properties` file to that directory, defining the source
 directory for the java or kotlin file, and the class that contains the `main` method.
+- Add an entry in `settings.gradle`
 
-The `build.gradle` file will normally be identical to this:
+The `build.gradle` file **should** be identical to all the other `build.gradle` files
+in all the other subprojects:
 ```groovy
-    plugins {
-        id 'application'
-        // id 'org.jetbrains.kotlin.jvm' // UNCOMMENT for kotlin projects
-    }
-    
     sourceSets {
         main {
             java {
@@ -78,19 +74,21 @@ The `build.gradle` file will normally be identical to this:
             }
         }
     }
-    
-    repositories {
-        mavenCentral()
-    }
-    
     application {
         mainClass = gameMain
     }
 ```
 
-And the `gradle.properties` file should look like this:
+The `gradle.properties` file should look like this:
 
     gameSource=91_Train/java/src
     gameMain=Train
 
 where `gameSource` is the root of the source code directory, and `gameMain` is the main class.
+
+The `settings.gradle` must be maintained as a list of all subprojects. Add your new
+project to the list.
+
+```groovy
+include ":build_91_Train_java"
+```