Changes

Summary

1. https://github.com/subshare/subshare/issues/78 (details)

Commit 5faf8820acf369e53090fd75532c67a26ec9a938 by marco https://github.com/subshare/subshare/issues/78
	org.subshare/org.subshare.local/src/test/java/org/subshare/local/AbstractTest.java
	org.subshare/org.subshare.test/src/test/java/org/subshare/test/PostgresqlRepoToRepoSyncIT.java
	org.subshare/org.subshare.local/src/main/java/org/subshare/local/db/SsDatabaseMigrater.java
	org.subshare/org.subshare.local/src/main/java/org/subshare/local/persistence/CryptoConfigPropSet.java
	org.subshare/org.subshare.local/src/main/java/org/subshare/local/persistence/NullMaskingWorkaround.java
	org.subshare/org.subshare.local/src/main/java/org/subshare/local/persistence/SsDirectory.java
	org.subshare/org.subshare.local/src/main/java/org/subshare/local/persistence/SsSymlink.java
	org.subshare/org.subshare.local/src/main/java/org/subshare/local/persistence/CryptoRepoFile.java
	org.subshare/org.subshare.local/src/main/java/org/subshare/local/persistence/SsNormalFile.java
	org.subshare/org.subshare.local/src/main/java/org/subshare/local/persistence/SignatureImpl.java
	org.subshare/org.subshare.local/src/main/java/org/subshare/local/persistence/package-postgresql.orm