Adds disaster message icons and closes #2138.
Translated using Weblate (Danish)

Currently translated at 67.2% (561 of 834 strings)
Translated using Weblate (Danish)

Currently translated at 77.2% (17 of 22 strings)
Fix a docstring

To both not lie about the delay parameter and play nicer with RTD.
Cf. http://unknown-horizons.readthedocs.org/en/latest/scenario.html
Add Winery graphics
Winery is build into UH
Rename VINTNER to WINERY

Much better description.
Translations: New templates

Generated by ./development/create_pot.sh
Add janexx to AUTHORS, regenerate credits

Welcome to the team!
Fix resource amount padding in production overview tab

With multiple resources, this used to place labels after the first a bit
too high.
Translated using Weblate (Estonian)

Currently translated at 71.3% (595 of 834 strings)
Translated using Weblate (Estonian)

Currently translated at 11.5% (22 of 191 strings)
Clean up after 2013.3-921-g9de115c (9de115c)

In particular, stop farm overview from crashing.
Fix farm overview tab layout

It can now hold up to 6 different lines again, everything beyond will
still be broken. Suggesting a scrollable area instead of further down-
sizing there though.

Multiple in- or output resources per line are also still a bit broken,
because the cogs icon doesn't cover 100% of the background arrows.
For details, click on any pastry shop.
Only center production line boxes if necessary

For lines with e.g. 2 input resources and 2 output resources, start at
0 instead of 1 each (as would have happened before). Calculating center_y
however is always required for aligning the toggle icon (cogs) correctly.

All or most of this is irrelevant anyways, as right now there simply do
not exist production lines which would have exposed the faulty behavior.
pep8 changes in horizons/ai/aiplayer/combat
Merge branch 'master' of https://github.com/unknown-horizons/unknown-horizons

Conflicts:
	horizons/constants.py
	horizons/i18n/objecttranslations.py