implement back the caching feature of gradle dependencies

Dockerfile

@@ -34,14 +34,16 @@ ADD gradle.properties .
 ADD gradle gradle
 ADD settings.gradle .
 # following is not used as it needs too much maintenance
-# ADD jastadd-mquat-solver-ilp/build.gradle jastadd-mquat-solver-ilp/build.gradle
-# ADD jastadd-mquat-solver/build.gradle jastadd-mquat-solver/build.gradle
-# ADD jastadd-mquat-base/build.gradle jastadd-mquat-base/build.gradle
-# ADD jastadd-mquat-base/jastadd_modules jastadd-mquat-base/jastadd_modules
-# ADD jastadd-mquat-solver-aco/build.gradle jastadd-mquat-solver-aco/build.gradle
-# ADD jastadd-mquat-solver-emfer/build.gradle jastadd-mquat-solver-emfer/build.gradle
-# ADD jastadd-mquat-solver-simple/build.gradle jastadd-mquat-solver-simple/build.gradle
-# ADD jastadd-mquat-benchmark/build.gradle jastadd-mquat-benchmark/build.gradle
+ADD jastadd-mquat-solver-ilp/build.gradle jastadd-mquat-solver-ilp/build.gradle
+ADD jastadd-mquat-solver/build.gradle jastadd-mquat-solver/build.gradle
+ADD jastadd-mquat-base/build.gradle jastadd-mquat-base/build.gradle
+ADD jastadd-mquat-base/jastadd_modules jastadd-mquat-base/jastadd_modules
+ADD jastadd-mquat-solver-aco/build.gradle jastadd-mquat-solver-aco/build.gradle
+ADD jastadd-mquat-solver-emfer/build.gradle jastadd-mquat-solver-emfer/build.gradle
+ADD jastadd-mquat-solver-simple/build.gradle jastadd-mquat-solver-simple/build.gradle
+ADD jastadd-mquat-solver-random/build.gradle jastadd-mquat-solver-random/build.gradle
+ADD jastadd-mquat-solver-genetic/build.gradle jastadd-mquat-solver-genetic/build.gradle
+ADD jastadd-mquat-benchmark/build.gradle jastadd-mquat-benchmark/build.gradle
 RUN ./gradlew --no-daemon --stacktrace build; true
 RUN ./gradlew --no-daemon --stacktrace dependencies; true
 # end optimization: first download