MAINT: Removed DropOffBox functionality.

conf/core/server.conf

misc/chown_script/README

misc/chown_script/chown_script_template

misc/chown_script/install

misc/chown_script/test_functions

src/doc/specification/Fileserver.md

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

src/main/java/org/caosdb/server/FileSystem.java

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

src/main/java/org/caosdb/server/entity/Entity.java

src/main/java/org/caosdb/server/entity/FileProperties.java

...in/java/org/caosdb/server/jobs/core/InsertFilesInDir.java

src/main/java/org/caosdb/server/jobs/core/PickUp.java

src/main/java/org/caosdb/server/transaction/Transaction.java

.../java/org/caosdb/server/transaction/WriteTransaction.java

src/main/java/org/caosdb/server/utils/FileUtils.java

src/main/java/org/caosdb/server/utils/Info.java

src/main/java/org/caosdb/server/utils/ServerMessages.java

src/test/java/org/caosdb/server/utils/FileUtilsTest.java