Update l10n files for 1.8.0
1.9.0-alpha-1
Fix typo in widget setting name

The setting name is `alt_text`, but in the `widget()` method itself we
were using `text_alt`. This is now fixed.

See #71
Introduce a base widget class

This class implements a bootstrap API for the plugin’s widgets,
reducing WETness.

A part of this is the handling of widget errors.

See #230
PHPUnit: Introduce an assertion for widget errors

See #230, #71
Extend base widget class for the points widgets

The base points widget class now extends the new `WordPoints_Widget`
class. There are two significant things here:

1. The class is intended to be a parent only, but wasn’t declared
abstract. This is strange, and I’ve added a note about it in the class
docs. Making it abstract is technically a breaking change, so maybe
we’ll wait for 2.0.0 to do that.
2. I’ve implemented the `verify_settings()` function, which will
automatically check the validity of a points type setting if one is
expected.

Another oddity is that there was a redundant constructor in the class,
that really did nothing. That is no more.

See #230, #71
PHPUnit tests for the My Points widget

The widget now uses the new bootstrapped API, to be DRY. This also
results in the user receiving an error message if an invalid points
type is being used (see #230).

In addition, a bug is fixed with the default text generation. If the
text was completely empty we generated some text for the widget using
the points type name. However, the arguments being passed to
`wordpoints_get_points_type_setting()` were backward, which means that
nothing was being returned. The result was something like “: $40”. I’m
actually unsure whether we should keep this behavior at all. If the
user wants to keep the widget empty, that’s their prerogative. But that
would be for another ticket.

See #71
PHPUnit: move widget helpers to base testcase

That way they are available to all of the widget unit tests.

See #71
Tweak the unit test for My Points widget alt_text

See #71
Use new bootstrap in the Top Users widget

Includes unit tests.

See #71, #203
Use new bootstrap in the Points Logs widget

This fixes a copy/pasta error in the names of the before and after
actions, which were copied from the Top Users widget and not changed
accordingly.

Includes unit tests.

See #71, #230
Travis CI: use develop branch of WPCS

Might fix some issues with PHPCS.

See #231
Update PHPCS config

See #231, dc0371bd8ef6372926271b849f7f6c371819325a
Update PHPCS ruleset

See #231
PHPCS updates

See #231
Show sniff codes when running PHPCS

See #231
Update to the new dev lib

See #231
Use the new Travis CI infrastructure

See
http://docs.travis-ci.com/user/workers/container-based-infrastructure/

See #231
Fix XML syntax in PHPCS ruleset

See #231
Update PHPCS config

See #231