Set the default anonymous server to a working one
Revstr works in all conversation tabs now.
Add a (per-tab) notif_messages option to ignore MUC’s normal messages
Typo/traceback
Fix the help of /gaming
Fix some PEP issues
Fix #2275, ref #2229

- Refactor the message handlers to be more readable
- Add a group_corrections tab-specific option (#2229)
- Fix issues with /correct in private tabs and conversation tabs
Remove the thread from the mpd_client

(it should be in an external tool, not _inside_ poezio)
Fix #2255 (search in input history)

- The input is split in two parts: on the left is what the user enters,
    on the right is the first match (the right part has a different
    color)
- Start and cancel a search with ^R
- Validate a search with enter, then press another time enter to send

- CommandInput and MessageInput now inherit from the HistoryInput class
  and share some methods
Add an option to choose between shared and separate input history

- separate_history, defaults to false
Consistency
Handle I/O errors better

- Do not crash because of low disk space
- Notify the user whenever it happens
- A few functions now return a boolean instead of nothing
- Config.silent_set is Config.set_and_save without toggle and returning
  strings. It is used whenever we don’t need set_and_save
- Config.set_and_save now returns a tuple (that can be passed directly
  to core.information())

TODO: display the precise error to the user (instead of “unable to…”)
Do not attempt to log things when use_log = false
Beginning of the migration to reST documentation
Start migrating the command index
Re-add the images
New (py3k) theme
Somehow finish the migration of the command list
Move images, and add SSL page
Add the message correction note