Clarified trac patch-related field meaning

There was some confusion on the mentorship list as to whether 'needs tests'
meant that a given ticket might not need tests, as opposed to flagging
a specific patch as still needing tests.

This commit seeks to clarify that confusion.
Merge branch 'docs-triage-needs-patch'
Revert ".DS_Store can be ignored."

OS specific files can be ignored in a global ignore file.

This reverts commit d66bd1dfb9e090154e586680023aa2b1f22e735d.
Fixed #20716 --Missing 'name_local' translation

Added 'name_local' translation for Albanian in LANG_INFO
Completed some more name_local names
Fixed #12346 -- Added a note on how to validate InlineFormSets.

Thanks johnsmith for the suggestion.
Fixed #6785 -- Made QuerySet.get() fetch a limited number of rows.

Thanks Patryk Zawadzki.
Fixed #20493 -- Added a warning that objects may not be picklable across Django versions

Thanks cataliniacob for the suggestion and review.
Fixed #16965 -- Clarified Formset can_delete docs.

Thanks gregcorey@ for the suggestion.
Fixed #19695 -- Retitle "Form Media" to "Form Assets".
Fixed #18944 -- Documented PasswordResetForm's from_email argument as a backwards incompatible change for 1.3

Thanks DrMeers for the report.
Fixed last_executed_query test failure on Oracle
Fixed #17339 -- Factor out has_result into database backend.

Thanks jonash.
Fixed #18261 -- Clarified 'project root directory'
Partial revert of commit 2bf403ecbd95

Homework: write 100 times geoapp is not geogapp.
Isolate geoapp test from sitemaps app being installed or not
Trusted test skipping about gis tests running or not

With the new test discovery system, gis tests are discovered as
other tests. They should be properly skipped now when dependencies
are missing. So let's stop special casing their inclusion.
Only import gis test apps for geo-enabled DBs
Fixed #20722 -- Fixed MemcachedCache backend get_many on Python 3.
Made an aggregate test pass with spatialite backend

backends.tests.SqliteAggregationTests was failing with spatialite.