make the tomcat servlet thread safe
differentiate between the reasons for unavailability of the servlet
Merge pull request #26 from saxsys/servlet_concurrency

make the tomcat servlet thread safe
invoke the send() operation asynchronously for every client so that slow clients do not interfere with clients that have a faster connection
skip unreliable tests
reversed imports + corrected typo
Merge pull request #27 from mthiele/send_to_multiple_clients_asynchronously

invoke the send() operation asynchronously for every client so that slow...
Merge remote-tracking branch 'origin/master' into model-deviation-detection
use separate command logs for separate single-value-properties