#33 Repository cleanup

There are some files in the repository that should be removed. For example, these files: .gradle/2.2.1/taskArtifacts/cache.properties.lock .gradle/2.2.1/taskArtifacts/fileHashes.bin .gradle/2.2.1/taskArtifacts/fileSnapshots.bin .gradle/2.2.1/taskArtifacts/outputFileStates.bin .gradle/2.2.1/taskArtifacts/taskArtifacts.bin These files are created by gradle each time the project is compiled. They need not be in the repository. Please try to tidy up the repository wherever you see an opportunity to do so. I have found ".class" files still lying around in some directories (for example).