Merge branch 'maint-2.1'
- maint-2.1: (21 commits) installation: post-release version bump Invenio v2.1.0 installation: more files in MANIFEST.in workflows: task history fix search: initial implementation of query enhancers knowledge: temporary knowledge creation removal installation: SQLAlchemy>=1.0, SQLA-Utils>=0.30 installation: grant db access on localhost global: legacy websearch webinterface removal global: fix models for PostgreSQL compatibility global: session 2.0 global: invenio.css and invenio-ie7.css removal deposit: grid fix deposit: sticky navigation communities: module externalisation to new package assets: removal of LESS_RUN_IN_DEBUG support assets: bootstrap version 3.3 accounts: login form layout fixes access: removal of external authentications oauthclient: extra template block addition ...