Add TLS input and output
zmq, moment, redis moved to "optionalDependencies"
readme fixes
Make node-logstash messages compatible with Logstash 1.2.x

In Logstash 1.2.x, message fields does not start with `@` anymore except
for `@timestamp` and `@version`.
`@fields` does not exists anymore (all fields are at the root of the
JSON message). This patch does not remove `@fields`, just rename other
`@` fields.
Merge pull request #38 from fasterize/logstash_1.2_compat

Make node-logstash messages compatible with Logstash 1.2.x
Use pretty print for stdout output
Migration to logstash 1.2.1 format
Bump version
Merge pull request #37 from mahnunchik/master

zmq, moment, redis moved to "optionalDependencies"
Msgpack is an optional dependencies
Do not add port in host field for tcp and udp input
Abstract tcp and udp
Abstract http
Add logio output
Update doc
Fix tests
More tests
Improve doc
Added a new geoip filter

Usage filter://geoip://?use_attr=postfix_source&save_latlon=true
Add helps section to doc