MELT client in local-testcase mode without output

[sven-h]

The MELT client was used in local-testcase mode and the generated alignments are not output (LogMap and Matcha tested) - neither on the command line nor into the files (using the parameter --results). It is also strange that for some tools (e.g., not working for Matcha, but working for LogMap) the client did not return computed evaluation results for some test cases (e.g. cmt-ekaw) but this is probably related to the tool mistake not the client.