connections are private by default now

discussion in issue #18

Added explicit asynchronous start function

A `connection` can operate synchronously, which
involves less overhead. It will be in a synchronous-
only state when it has been newly constructed or cance

Added explicit asynchronous start function

A `connection` can operate synchronously, which
involves less overhead. It will be in a synchronous-
only state when it has been newly constructed or cancelled.

`dbus::impl::connection::start()` begins/resumes
asynchronous operation, and should be called automatically
whenever an asynchronous operation is requested.

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simple impl::connection

moved match/filter implementation details to dbus::impl

Added Python scripts for tests to interact with

Added message factories

Added endpoint - closes #17

fix #3, minor other message enhancements

remove test.cpp from CMakeLists.txt

Merge pull request #12 from Xenopathic/patch-1

Correct project name

Correct project name

Using GTest - resolves #2

added license file and copyright comments - fixes #10

using intrusive_ptr<DBusMessage> in dbus::message

implemented connection::async_send

Tweaks to message, filter and error

- `message` now has get_path() etc. for accessing its metadata.
- `error` how has a constructor which takes a `message`,
to ease conversion of error messages to

Tweaks to message, filter and error

- `message` now has get_path() etc. for accessing its metadata.
- `error` how has a constructor which takes a `message`,
to ease conversion of error messages to throwable exceptions
or `error_code`s
- `filter`'s predicate now takes `message`s by reference and
is not ignored

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Merge branch 'master' of github.com:bkietz/boost-dbus

Conflicts:
include/dbus/impl/packer.ipp

working toward message correctness

Working class

filter, match brought to sanity

Merge branch 'master' of github.com:bkietz/boost-dbus

Conflicts:
include/dbus/connection_service.hpp

match/filter hackathon

match/filter hackathon

Working D-Bus method call

Mostly syntactically correct test.cpp