Changelog

0.4.0

q keybind was altered slightly: it removes current buffer; if there's no buffer to remove, it closes the application
This change was requested over here: #21
Main listing is now sorted by date when the object was changed #89 (thanks to @f-cap)
This should move e.g. running containers to the top of the list

There's a new command system being introduced
Can be activated with :
You can use help command for getting more info about commands
calling help shows help buffer for current buffer
calling help command displays help for the selected command
Using keybind ? now displays name of commands sen actually uses
The command system is experimental and subject to change (some commands will be changed or removed in future)
New listing command: open in browser #94 (thanks to @f-cap)
You no longer need to copy-paste IP address of a container to browser, just hit b in main listing buffer and sen will open the http://{ip_address}:{port} of the particular container in your browser
Understand new image format introduced in 1.10
Layers are displayed in image info buffer

sen is able to start even when there are no images nor containers #86 (thanks to @f-cap)
Persist filters and searching when changing buffers #85

Added new buffer which displays detailed info about container:
Process tree inside container, brief logs, labels, realtime resource usage, networking...
Can be activated by hitting <enter> on a container in main listing.
Pressing ! while in main listing disables live updates: you don't need to worry about accidentally removing a container when interface updates.
Main listing table displays responsively now.
sen is now able to survive a docker daemon restart.
When removing buffers, last accessed buffer will be displayed instead of main listing.

Make sen work with docker 1.10 and 1.11.
Fix race condition which happened quite often and resulted in traceback with message
```
AssertionError: rows, render mismatch
```
When listing containers or images via docker engine API, it's possible to get 500; sen retries the call several times now.
sen won't freeze when opening a new buffer while there are multiple calls against docker engine pending.

There are also other small fixes and improvements. sen contains more tests so it should be more stable in future.