Merge branch 'dev' into f-cleanup-awi

...java/caosdb/server/accessControl/AuthenticationUtils.java

...a/caosdb/server/accessControl/CaosDBAuthorizingRealm.java

...db/server/accessControl/CaosDBRolePermissionResolver.java

src/main/java/caosdb/server/accessControl/Config.java

...a/caosdb/server/accessControl/ConsumedInfoCleanupJob.java

...osdb/server/accessControl/OneTimeAuthenticationToken.java

...caosdb/server/accessControl/OneTimeTokenConsumedInfo.java

.../java/caosdb/server/accessControl/OneTimeTokenToFile.java

src/main/java/caosdb/server/accessControl/Principal.java

...rver/accessControl/SelfValidatingAuthenticationToken.java

src/main/java/caosdb/server/accessControl/SessionToken.java

...n/java/caosdb/server/accessControl/SessionTokenRealm.java

src/main/java/caosdb/server/accessControl/UserSources.java

src/main/java/caosdb/server/caching/JCSCacheHelper.java

src/main/java/caosdb/server/database/BackendTransaction.java

...a/caosdb/server/database/CacheableBackendTransaction.java

src/main/java/caosdb/server/database/DatabaseUtils.java

...ain/java/caosdb/server/database/MySQLSetFileChecksum.java

.../backend/implementation/MySQL/DatabaseConnectionPool.java

...er/database/backend/implementation/MySQL/MySQLHelper.java