[MOD] better keys



git-svn-id: https://svn.uni-konstanz.de/disy/Treetank/trunk/treetank@7187 e3ddb328-5bfe-0310-b762-aafcbcbd2528
[MOD] credentials now basing on file in homedir


git-svn-id: https://svn.uni-konstanz.de/disy/Treetank/trunk/treetank@7188 e3ddb328-5bfe-0310-b762-aafcbcbd2528
Merge remote-tracking branch 'refs/remotes/git-svn'