Changes

Summary

1. https://github.com/subshare/subshare/issues/45 (details)
2. https://github.com/subshare/subshare/issues/45 (details)
3. https://github.com/subshare/subshare/issues/45 (details)

Commit 9b4e83b178d8aa89e1f22cfe9b619808a7be9544 by marco https://github.com/subshare/subshare/issues/45
	org.subshare/org.subshare.local/src/main/java/org/subshare/local/CryptreeNode.java
Commit 08b0841cb1b6c7c6765366ab830ee5fd93808e3d by marco https://github.com/subshare/subshare/issues/45
	org.subshare/org.subshare.local/src/main/java/org/subshare/local/CryptreeNode.java
Commit cc691d740ea9a49b98b95c06b96f8e7b12f2b7f9 by marco https://github.com/subshare/subshare/issues/45
	org.subshare/org.subshare.local/src/main/java/org/subshare/local/CryptreeNode.java