Django-rosetta

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* Added ROSETTA_SHOW_OCCURRENCES: Option to hide file name & path (77, PR 221, thanks sarathak)
* Unfuzzy fuzzy entries when the translation is changed (16, PR 220, thanks sarathak)
* Updated spanish translation (230, thank you mondeja)
* Test against Django 3.0 and Python 3.8

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* Added a tooltip to explain fuzzy entries (206)
* New ROSETTA_LANGUAGES setting allows for translating languages which are not yet in LANGUAGES (219)
* Fix for duplicate PO files listed on case insensitive filesystems (47, 52, 218, thanks malkstar)

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* Cleanup of imports, and use relative imports. Hopefully fixes 209.
* Travis: cleanup and test with Python 3.7

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* Removed old compatibility code for Django < 1.11 (205, thanks claudep)
* Allow overriding rosetta login url (210, thanks izimobil)
* Test against Django 2.2
* Optional line number in the occurrences column (215, thanks pauloxnet)
* Add search in msgctxt (213, thanks yakky)
* Strip code tag from Yandex response. (212, thanks izimobil)
* Test friendly settings and better tests (211, thanks izimobil)
* The reference language didn't work in widows (189, thanks pedfercue)

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* Fix `ROSETTA_REQUIRES_AUTH = False` wasn't respected (203, BarnabasSzabolcs)
* Django-rosetta now requires Django 1.11 or newer. Rosetta 0.8.3 is the last version to support Django 1.8 through 1.10. (204, thanks claudep)

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* Replace the (no longer working) Microsoft translation API with the new Azure Translator API (Fixes 200 and 201, thank you svdvonde)