libev_connection: use globals to track sigint and sigterm watchers as they are created globally within libev
libev_connection: Fix globals warning
libev_connection: Fix varable naming
libev_connection: tweak docs
Fix return value on dns resolution issue

Closes #393
Add additional badges
Update parameters.rst

Missing comma on sample code
Merge pull request #405 from amferraz/patch-1

Fix typo
Merge pull request #394 from comodit/fix_393

Fix return value on dns resolution issue
fix for issue 391 and issue 307
Fix BlockingChannel.basic_consume does not block on non-empty queues

When _send_message called, restore previous _received_response value.
So when recursion of _send_message, it doesn't override previous
_received_reponse.

fixes #364
Merge branch 'master' of https://github.com/pika/pika
Merge pull request #409 from majecty/issue364

Fix BlockingChannel.basic_consume does not block on non-empty queues
Expose no_ack and exclusive to BlockingChannel.consume
Documentation fix for basic_publish

Documentation fix for [#415](https://github.com/pika/pika/issues/415)
Merge branch 'master' of https://github.com/pika/pika
connection.py: Propagate the force_channel keyword parameter to methods involved in channel creation
Fix the spelling of UnsupportedAMQPFieldException

Keep UnspportedAMQPFieldException for backwards compatibility purposes

Signed-off-by: Garrett Cooper <yanegomi@gmail.com>
Sponsored-by: Zonar Systems, Inc
Fixed minor markup errors.
Documentation fix