added IdMixin
Fixed a bug that RecordFilterMixin does not work with stream with multiple records

"format_stream" passes tag variable to "filter_record" without deep
copying.
It works fine when there is only 1 record in stream.
But If the stream have n records, filter_record filters tag n times.
update msgpack dependency
fix dependency with both msgpack 0.4.x and 0.5.x
hotchpotch huck for "~> 0.4.4" OR "~> 0.5.4"
Merge pull request #111 from tagomoris/msgpack5

update msgpack dependency (v0.4.4 -> v0.5.4)
added msgpack < 0.6.0 dependency as well
added in_monitor_agent
in_monitor_agent: move debug_mode flag from config file to the query_string in a HTTP request
Merge branch 'id-mixin' into monitor_agent
added PluginId module (formerly named IdMixin); Input and Output classes include PluginId by default
in_monitor_agent: added more comments
in_monitor_agent: added debug messages
in_monitor_agent: uses LTSV format at /api/plugins and JSON format at /api/plugins.json
Add queued_chunk_flush_interval to BufferedOutput
Use random value to calc retry wait
Goodbye jeweler and welcome bundler!
Merge pull request #116 from fluent/goodbye-jeweler

Goodbye jeweler and welcome bundler!
s/fluent/fluentd/
Merge branch 'monitor_agent'