Merge branch 'ssdm-13251-dss-api-facade'

api-data-store-server-java/.gitignore

api-data-store-server-java/build.gradle

api-data-store-server-java/gradle/wrapper/gradle-wrapper.jar

...tore-server-java/gradle/wrapper/gradle-wrapper.properties

api-data-store-server-java/gradlew

api-data-store-server-java/gradlew.bat

api-data-store-server-java/settings.gradle

...c/main/java/ch/ethz/sis/afsapi/api/AuthenticationAPI.java

...a/src/main/java/ch/ethz/sis/afsapi/api/OperationsAPI.java

...-java/src/main/java/ch/ethz/sis/afsapi/api/PublicAPI.java

...n/java/ch/ethz/sis/afsapi/api/TwoPhaseTransactionAPI.java

...ava/src/main/java/ch/ethz/sis/afsapi/dto/ApiResponse.java

...src/main/java/ch/ethz/sis/afsapi/dto/ExceptionReason.java

...a/src/main/java/ch/ethz/sis/afsapi/dto/ExceptionType.java

...erver-java/src/main/java/ch/ethz/sis/afsapi/dto/File.java

...hz/sis/afsapi/exception/BaseRuntimeExceptionTemplate.java

...ch/ethz/sis/afsapi/exception/ExceptionTemplateHolder.java

...h/ethz/sis/afsapi/exception/RuntimeExceptionTemplate.java

...in/java/ch/ethz/sis/afsapi/exception/ThrowableReason.java

...src/main/java/ch/ethz/sis/afsclient/client/AfsClient.java