* don't evaluate invalid log-lines leading to unexpected results
* don't abort parsing just because of an invalid character at the beginning/end
* add debug-output if line doesn't match
* rename tsstats.log.parse_logs to tsstats.log.parse_log and remove glob-functionality
* create tsstats.log.parse_log to handle globbing
* fix tests to use tsstats.log.parse_log instead of tsstats.log.parse_logs
* bump version to 0.4.0
* use collections.MutableMapping as base
* use one dict to store all types of Clients
* don't use implicit += but explicit .setdefault in tsstats.log for client-adding
* give all clients to sort_clients in tsstats.template
* remove now unneccessary clients-assignment in tsstats.utils.sort_clients