WIP: fix importance bug

conf/core/jobs.csv

conf/core/server.conf

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

...n/java/org/caosdb/server/database/BackendTransaction.java

...atabase/backend/implementation/MySQL/MySQLRuleLoader.java

...db/server/database/backend/interfaces/RuleLoaderImpl.java

...atabase/backend/transaction/InsertTransactionHistory.java

...aosdb/server/database/backend/transaction/RuleLoader.java

src/main/java/org/caosdb/server/jobs/Job.java

src/main/java/org/caosdb/server/jobs/JobConfig.java

...ava/org/caosdb/server/jobs/core/CheckDatatypePresent.java

...a/org/caosdb/server/jobs/core/CheckParOblPropPresent.java

...java/org/caosdb/server/jobs/core/InheritInitialState.java

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

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

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

.../java/org/caosdb/server/utils/ConfigurationException.java

src/test/java/org/caosdb/server/jobs/JobConfigTest.java