Merge branch 'dev' into f-tsv-file-to-xsl

.gitlab-ci.yml

CHANGELOG.md

caosdb-webui

conf/core/cache.ccf

conf/core/log4j2-default.properties

conf/core/server.conf

doc/devel/Benchmarking.md

makefile

pom.xml

scripting/home/readme.md

src/main/java/caosdb/server/CaosDBServer.java

src/main/java/caosdb/server/ServerProperties.java

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

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

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

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

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

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

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

...rver/database/backend/transaction/DeleteSparseEntity.java