v_1.1.4-1

• [FIX] Don't swallow exceptions in AsyncAppender (LOGBACK-910)
• [NEW] Improve performance in exception-heavy apps (LOGBACK-966)
• [NEW] Add support for SLF4J event replay (SLF4J-353)
• [NEW] Rename XML config to enable packaging data from packageTrace to packagingData
• Minor tweaks to LogbackMDCAdapter and LoggingEvent