docs: include rtd-requirements.txt

* This file is needed by Read the Docs to build the documentation.
  Since we're using a Pipfile to define dependencies the file has to
  be generated manually (until RTD supports Pipfiles).

readthedocs.yml

@@ -0,0 +1,4 @@
+build:
+  image: latest
+python:
+  version: 3.6

rtd-requirements.txt

@@ -0,0 +1,174 @@
+# These requirements are used for building the documentation by Read the Docs.
+# Remove once https://github.com/rtfd/readthedocs.org/issues/3181 is closed.
+alabaster==0.7.12
+alembic==1.0.2
+amqp==2.3.2
+argparse==1.4.0
+arrow==0.12.1
+asn1crypto==0.24.0
+astunparse==1.6.1
+atomicwrites==1.2.1
+attrs==18.2.0
+autosemver==0.5.3
+babel==2.6.0
+backcall==0.1.0
+billiard==3.5.0.4
+binaryornot==0.4.4
+bleach==3.0.2
+blinker==1.4
+celery==4.2.1
+certifi==2018.10.15
+cffi==1.11.5
+chardet==3.0.4
+check-manifest==0.37
+click==7.0
+cookiecutter==1.6.0
+coverage==4.5.1
+cryptography==2.3.1
+decorator==4.3.0
+docutils==0.14
+dulwich==0.19.8
+elasticsearch==6.3.1
+elasticsearch-dsl==6.1.0
+flake8==3.6.0
+flask==1.0.2
+flask-admin==1.5.2
+flask-alembic==2.0.1
+flask-babelex==0.9.3
+flask-breadcrumbs==0.4.0
+flask-caching==1.4.0
+flask-celeryext==0.3.1
+flask-cors==3.0.6
+flask-kvsession==0.6.2
+flask-limiter==1.0.1
+flask-login==0.4.1
+flask-mail==0.9.1
+flask-menu==0.7.0
+flask-oauthlib==0.9.5
+flask-principal==0.4.0
+flask-security==3.0.0
+flask-shell-ipython==0.3.1
+flask-sqlalchemy==2.3.2
+flask-talisman==0.5.0
+flask-wtf==0.14.2
+ftfy==4.4.3
+future==0.17.1
+html5lib==1.0.1
+idna==2.7
+idutils==1.1.0
+imagesize==1.1.0
+infinity==1.4
+intervals==0.8.1
+invenio-access==1.0.2
+invenio-accounts==1.0.2
+invenio-app==1.0.4
+invenio[auth,elasticsearch6,postgresql]==3.0.0
+invenio-base==1.0.1
+invenio-cache==1.0.0
+invenio-celery==1.0.0
+invenio-config==1.0.1
+invenio-db[postgresql,versioning]==1.0.2
+invenio-i18n==1.0.0
+invenio-indexer==1.0.1
+invenio-mail==1.0.1
+invenio-oauth2server==1.0.2
+invenio-oauthclient==1.0.0
+invenio-pidstore==1.0.0
+invenio-records==1.0.0
+invenio-records-rest==1.2.1
+invenio-rest==1.0.0
+invenio-search[elasticsearch6]==1.0.2
+invenio-userprofiles==1.0.1
+ipaddress==1.0.22
+ipython==7.1.1
+ipython-genutils==0.2.0
+isbnid-fork==0.5.2
+isort==4.3.4
+itsdangerous==1.1.0
+jedi==0.13.1
+jinja2==2.10
+jinja2-time==0.2.0
+jsonpatch==1.23
+jsonpointer==2.0
+jsonref==0.2
+jsonresolver==0.2.1
+jsonschema==2.6.0
+kombu==4.2.1
+limits==1.3
+mako==1.0.7
+markupsafe==1.1.0
+marshmallow==2.16.3
+maxminddb==1.4.1
+maxminddb-geolite2==2018.703
+mccabe==0.6.1
+mock==2.0.0
+more-itertools==4.3.0
+msgpack-python==0.5.6
+oauthlib==2.1.0
+packaging==18.0
+parso==0.3.1
+passlib==1.7.1
+pbr==5.1.1
+pexpect==4.6.0 ; sys_platform != 'win32'
+pickleshare==0.7.5
+pluggy==0.8.0
+poyo==0.4.2
+prompt-toolkit==2.0.7
+psycopg2-binary==2.7.6
+ptyprocess==0.6.0
+py==1.7.0
+pycodestyle==2.4.0
+pycparser==2.19
+pydocstyle==3.0.0
+pyflakes==2.0.0
+pygments==2.2.0
+pyjwt==1.6.4
+pyparsing==2.3.0
+pytest==3.10.0
+pytest-cov==2.6.0
+pytest-flask==0.14.0
+pytest-invenio==1.0.5
+pytest-mock==1.10.0
+pytest-pycodestyle==1.3.0
+pytest-random-order==1.0.2
+pytest-runner==4.2
+python-dateutil==2.7.5
+python-editor==1.0.3
+pytz==2018.7
+redis==2.10.6
+requests==2.20.1
+requests-oauthlib==1.0.0
+selenium==3.141.0
+simplejson==3.16.0
+simplekv==0.11.11
+six==1.11.0
+snowballstemmer==1.2.1
+speaklater==1.3
+sphinx==1.8.1
+sphinx-autodoc-typehints==1.3.0
+sphinx-click==1.4.0
+sphinxcontrib-httpdomain==1.7.0
+sphinxcontrib-httpexample==0.10.0
+sphinxcontrib-websupport==1.1.0
+sqlalchemy==1.2.13
+sqlalchemy-continuum==1.3.4
+sqlalchemy-utils[encrypted]==0.33.6
+traitlets==4.3.2
+ua-parser==0.8.0
+uritools==2.2.0
+urllib3==1.24.1
+uwsgi==2.0.17.1
+uwsgi-tools==1.1.1
+uwsgitop==0.10
+validators==0.12.2
+vine==1.1.4
+wcwidth==0.1.7
+webargs==4.1.2
+webencodings==0.5.1
+werkzeug==0.14.1
+wheel==0.32.2
+whichcraft==0.5.2
+wtforms==2.2.1
+wtforms-alchemy==0.16.7
+wtforms-components==0.10.3
+-e .