Added unknown_up parameter. Closes #103.
Merge pull request #104 from Sysnove/unknown_up

Added unknown_up parameter. Closes #103.
Update README #104
Play song on left click even if stopped
Add network traffic module

This module allows to display packets/bytes sent/received per second.
The implementation uses `psutil.net_io_counters`.
Merge pull request #106 from simon04/network_traffic

Add network traffic module
Update readme #106
Merge pull request #105 from bparmentier/master

Play song on left click even if stopped
Update docs #105
Possible fix for #102
battery full
battery-full
Better fix for #102

Rationale:
-other backends don't require internet access
-displaying last unread count w/o connection seems reasonable
-however: error handling in get_connection() is quite wildcardy,
which is no good. Should be fixed asap.

Introducing a core exception for directly displaying errors may be a good idea at this point for next.
def-status
Alternative exception handling

Related #102 #100 and others
Don't catch exceptions by wildcard randomly

Related #102 #100
Require working DNS for internet connectivity

Relates to #102
Merge pull request #108 from Argish42/batteryfull

Battery Module - No text when 100%
This patch allows the notmuch backend to retrieve the notmuch database path from the notmuch configuration file in case no "db_path" argument is passed to the Notmuch constructor.
In such a case, i3pystatus will try to load the file designed by the
environment variable NOTMUCH_CONFIG and "~/.notmuch_config". and
retrieve the value "path" of the section [database].
i3 next branch send click events on mouse wheel up/down. This patch allows to change the alsa volume with the mousewheel when hovering the alsa indicator