QAmqpQueue and QAmqpExchange both now have an isDeclared property,
and QAmqpChannel::isOpened was renamed to isOpen to more closely follow
Qt style/api guidelines
RabbitMQ supports publish confirms (Publisher Acknowledgements) on
a given channel. This enables the user to toggle this functionality
and ensure that published messages are in fact published.
This is a very small library, so there is no real pressing need for
a library namespace. Further, the namespacing actually makes it rather
difficult to work with in some cases. Opting for a more "Qt" style
class naming scheme, using the QAmqp class prefix
amqp_<filename> is used in at least two other C/C++ projects related
to amqp, so this commit changes all our source to use a qamqp header.
This avoids potential clashes, and is more in line with Qt style
Matt Broadstone