Adds job decorator for deferring jobs

- adds eventmq.client.jobs.job and Job() to be used as a decorator for
  deferring functions
- add example usage to README
- add client env variable `EMQ_BROKER_ADDR` to easily specify where the broker
  is for deferring jobs.

3 files changed, 12 insertions, 3 deletions

diff --git a/docs/client/jobs.rst b/docs/client/jobs.rst
new file mode 100644
index 0000000..a4acb3b
--- /dev/null
+++ b/docs/client/jobs.rst
@@ -0,0 +1,3 @@
+.. automodule:: eventmq.client.jobs
+   :members:
+   :special-members:
diff --git a/docs/settings_file.rst b/docs/settings_file.rst
index b0bc36c..cd37b6a 100644
--- a/docs/settings_file.rst
+++ b/docs/settings_file.rst
@@ -1,6 +1,6 @@
-########
-Settings
-########
+##############################
+Server Settings (eventmq.conf)
+##############################
 EventMQ uses a standard INI style config file found at ``/etc/eventmq.conf``.
 
 ******
diff --git a/docs/using.rst b/docs/using.rst
index 3c6a517..4e5ee10 100644
--- a/docs/using.rst
+++ b/docs/using.rst
@@ -6,3 +6,9 @@ Using EventMQ
    :maxdepth: 2
 
    settings_file
+
+****************************
+Client Environment Variables
+****************************
+
+``EMQ_BROKER_ADDR`` is the address a client should use to connect to the broker. The client can be any application using EventMQ.