docs: invenio rebase howto

* Adds howto on rebasing Zenodo's Invenio fork.

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
base: briefideas logo

* Adds logo for journal of brief ideas.
  (closes #64, closes openjournals/brief-ideas#5)

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
base: github logo relationship addition

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
deposit: new related relationships

* Adds new relationships isIdenticalTo, isPartOf, hasPart.
  (closes #38)

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
deposit: WTForms deprecation warning fix

* Fixes WTForms 2.0 deprecation warnings. (addresses #65)

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
docs: test documentation build

* Adds Sphinx build to test file to ensure documentation can be built.

* Fixes documentation build problems.

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
base: fix email addresses

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
base: alternate identifiers field

* Adds new field alternate identifiers to data model, and integrates the field
  with related identifiers field in deposit model. (closes #37)

* Adds support in DataCite metadata for links to files when record is open
  access. (closes #90)

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
deposit: api delete test

Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>