1.11.0

• Break: The NewRelicHandler extra and context data are now prefixed with extra_ and context_ to avoid clashes. Watch out if you have scripts reading those from the API and rely on names
• Added WhatFailureGroupHandler to suppress any exception coming from the wrapped handlers and avoid chain failures if a logging service fails
• Added MandrillHandler to send emails via the Mandrillapp.com API
• Added SlackHandler to log records to a Slack.com account
• Added FleepHookHandler to log records to a Fleep.io account
• Added LogglyHandler::addTag to allow adding tags to an existing handler
• Added $ignoreEmptyContextAndExtra to LineFormatter to avoid empty [] at the end
• Added $useLocking to StreamHandler and RotatingFileHandler to enable flock() while writing
• Added support for PhpAmqpLib in the AmqpHandler
• Added FingersCrossedHandler::clear and BufferHandler::clear to reset them between batches in long running jobs
• Added support for adding extra fields from $_SERVER in the WebProcessor
• Fixed support for non-string values in PrsLogMessageProcessor
• Fixed SwiftMailer messages being sent with the wrong date in long running scripts
• Fixed minor PHP 5.6 compatibility issues
• Fixed BufferHandler::close being called twice