Release 3.2.2

[ppanero]

Closes #4006

[ppanero]

Have done the quickstart + record and file creation/search and it is working. In addition, there is ongoing work on fixing the tutorials.

• https://invenio.readthedocs.io/en/latest/quickstart/quickstart.html ✅
• https://invenio.readthedocs.io/en/latest/quickstart/crud-operations.html#crud-operations ✅

[ppanero]

Build is breaking for two reasons:

1- Cannot find invenio-app 1.2.6 But it does exists in PyPi

ERROR: Could not find a version that satisfies the requirement invenio-app==1.2.6<1.3.0 (from -r .travis-lowest-requirements.txt (line 7)) (from versions: 1.0.0a1, 1.0.0a2, 1.0.0a3, 1.0.0b1, 1.0.0b2, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.1.0, 1.1.1, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.5, 1.2.6)
1026ERROR: No matching distribution found for invenio-app==1.2.6<1.3.0 (from -r .travis-lowest-requirements.txt (line 7))

2- Cannot find CSV serializer in invenio-records-rest docs. I can see it has disappeared from the docs. Nonetheless, the latest build passed and seemed to be fine.

/home/travis/build/inveniosoftware/invenio/docs/releases/v3.2.0.rst:159:py:class reference target not found: invenio_records_rest.serializers.csv.CSVSerializer

update: Fixed. 1- missing comma, 2- docs build erroring in readthedocs due to python version.