Add Azerbaijani localization

[Anna Tomanek]

Azerbaijani is 100% complete at Transifex, but so far it hasn't been added to CKEditor configuration.

Expected result

Azerbaijani should be added to CKEditor configuration to make it available to users.

​https://www.transifex.com/ckeditor/ckeditor/language/az/

[Tade0]

Added translations updated from transifex.

Note: copyformatting plugin needs a separate update, because there are translations for several languages that were added in the meantime.

Left it alone for now to avoid making a mess.

Changes pushed to ​branch:t/16752.

[Tomasz Jakut]

After enabling AZ language in the editor, colorbutton and colordialog still don't seem to respect that setting and display everything in English – even while language files for these plugins are avalaible.

Labels for contextmenu iframe are also incorrectly bound.

Probably the same for docprops plugin.

[Marek Lewandowski]

Please add a manual test in this case for this language. Don't forget bender tags, so this manual test is used during the testing phase.

[Tomasz Jakut]

Maybe it would be better to create generic manual test for language integration, with an ability to switch between languages?

[Marek Lewandowski]

@t.jakut we have somethign like that in old samples: ​http://ckeditor.dev/samples/old/uilanguages.html

We could make a generic manual test out of it without any effort. So +1 for this idea.

[Tade0]

There's one additional thing:

We don't have Azerbaijani translations for colours like "Light Grayish Cyan" or "Emerald" that were added during a recent palette update.

[Marek Lewandowski]

@Tade0 AFAICT: tx should automatically inline english translations there. We're ofc fine with that.

[Tade0]

In some plugins the language property was not updated, fixed that.

Added manual test.

Changes pushed to ​branch:t/16752.

[Marek Lewandowski]

• Opening ​manual test causes following exception:

Uncaught TypeError: Cannot read property 'icons' of null

at CKEDITOR.resourceManager.<anonymous> (plugins.js:39) at CKEDITOR.resourceManager.<anonymous> (resourcemanager.js:225) at doCallback (scriptloader.js:70) at checkLoaded (scriptloader.js:84) at loadScript (scriptloader.js:103) at Object.load (scriptloader.js:153) at CKEDITOR.resourceManager.load (resourcemanager.js:209) at CKEDITOR.resourceManager.loadPlugins (plugins.js:29) at CKEDITOR.resourceManager.load (plugins.js:88) at loadPlugins (editor.js:507)

And the mt is not working (its disabled).

• It was ​supposed to be a general manual test, so it should land in a proper directory, without tc tag. I'd suggest putting it as tests/core/manual/language.
• This is not a Polish lang ​https://github.com/cksource/ckeditor-dev/blob/29618bb/lang/az.js#L7-L8

[Tade0]

Corrected errors, included the core plugin set in manual test, moved manual test to tests/core/language/manual(last half of the name like that to stay consistent with other tests in that directory).

Changes pushed to ​branch:t/16752.

[Marek Lewandowski]

This time looks OK, the only thing I'm missing here is entry in ​https://github.com/cksource/ckeditor-dev/blob/t/16752/lang/_translationstatus.txt#L17 but we can add it later.

Merged to master with ​git:5b0bded.