Merge pull request #25 from szilardhuber/master

Sending data in chunks.
merging downstream changes
skeleton diag service
simple diagnostic server and sample client
log server now prints useful messages
Merge pull request #26 from szilardhuber/master

Refactored CSV parsing.
added log level to the message
Merge remote-tracking branch 'upstream/master'
Merge pull request #27 from dbeck/master

implemented sample logger server and a test client
Adding metadata service to CSV provider. + creating basic client for testing
Merge branch 'master' of github.com:szilardhuber/virtdb-apps