Log message:
Drop support for Ruby 1.9.3.  Noted by joerg@ and thanks!

Log message:
Update ruby-amq-protocol to 2.0.0.

## Changes between 1.9.x and 2.0.0

2.0.0 has **breaking changes** in header encoding.

### Signed Integer Encoding in Headers

Integer values in headers are now encoded as signed 64-bit
(was unsigned 32-bit previously, unintentionally).

This is a breaking change: consuming messages with integers in headers
published with older versions of this library will break!

### Signed 16 Bit Integer Decoding

Signed 16 bit integers are now decoded correctly.

### Signed 8 Bit Integer Decoding

Signed 8 bit integers are now decoded correctly.

Contributed by Benjamin Conlan.

Log message:
Update ruby-amq-protocol to 1.9.2.

## Changes between 1.9.x and 1.10.0

### Signed 16 Bit Integer Decoding

Signed 16 bit integers are now decoded correctly.

Contributed by Benjamin Conlan.

## Changes between 1.8.0 and 1.9.0

### Performance Improvements in AMQ::BitSet

`AMQ::BitSet#next_clear_bit` is now drastically more efficient
(down from 6 minutes for 10,000 iterations to 4 seconds for 65,536 iterations).

Contributed by Doug Rohrer, Dave Anderson, and Jason Voegele from
[Neo](http://www.neo.com).

## Changes between 1.7.0 and 1.8.0

### Body Framing Fix

Messages exactly 128 Kb in size are now framed correctly.

Contributed by Nicolas Viennot.

Log message:
Update ruby-amq-protocol to 1.2.0.

Exact changes aren't available.  Please refer change log in github.

Log message:
Update ruby-amq-protocol to 1.2.0.

* Frame body on Ruby 1.9+ using bytes, not code points String#slice will only
  use byte slicing if the string is considered to be in ASCII.
* Replace broken link with an inline comment
* Adds specs to validate 8bit/16bit signed decoding
* Adds 8bit signed and 16bit signed integers to table decoder

Log message:
Update ruby-amq-protocol to 1.1.0.

## Changes between 1.0.0 and 1.1.0

### Performance Enhancements

Encoding of large payloads is now done more efficiently.

Contributed by Greg Brockman.

Log message:
Update ruby-amq-protocol to 1.0.1.

## Changes between 1.0.0 and 1.0.1

### Missing require

`amq-protocol` now makes sure `DateTime` is loaded before trying to use it.

## Changes between 1.0.0.pre6 and 1.0.0.pre7

### AMQ::Settings

`AMQ::Settings` extracts settings merging logic and AMQP/AMQPS URI parsing from \ 
`amq-client`.
Parsing follows the same convention amqp gem and RabbitMQ Java client follow.

Examples:

``` ruby
AMQ::Settings.parse_amqp_url("amqp://dev.rabbitmq.com")            # \ 
=> vhost is nil, so default (/) will be used
AMQ::Settings.parse_amqp_url("amqp://dev.rabbitmq.com/")           # \ 
=> vhost is an empty string
AMQ::Settings.parse_amqp_url("amqp://dev.rabbitmq.com/%2Fvault")   # \ 
=> vhost is /vault
AMQ::Settings.parse_amqp_url("amqp://dev.rabbitmq.com/production") # \ 
=> vhost is production
AMQ::Settings.parse_amqp_url("amqp://dev.rabbitmq.com/a.b.c")      # \ 
=> vhost is a.b.c
AMQ::Settings.parse_amqp_url("amqp://dev.rabbitmq.com/foo/bar")    # \ 
=> ArgumentError
```

### AMQ::Protocol::TLS_PORT

`AMQ::Protocol::TLS_PORT` is a new constant that contains default AMQPS 0.9.1 port,
5671.

Log message:
Update ruby-amq-protocol to 0.9.4.

Changes are unavailable.

Log message:
Update ruby-amq-protocol to 0.9.0.

Exact changes are unknown.

Log message:
Importing net/ruby-amq-protocol pacakge version 0.8.4.
(This is required by new ruby-amqp package.