fixed broken test setup for addsInfoMessageWhenEventIsBeingDroppedBecauseOfConnectionProblemAndDequeCapacityLimitReached
Fix for LOGBACK-875

Prevent logging on an interrupted thread from shutting down prudent file
appenders due to a FileLockInterruptedException
Update javadoc, cannot find CustomDBNameResolver
Add release note for LOGBACK-875 fix
add Sebastian Groebler to list of CLAs
add tavis config file
Ensure that logback-classic builds with Travis
add CLA for A. Dorokhine
AppenderBase started variable made volatile as it is mutable, access to it is not synchronized and it is shared between threads.
Fix for http://jira.qos.ch/browse/LOGBACK-1037
suppres --> suppress
Update CONTRIBUTING.md
Update CONTRIBUTING.md
Modify log.