Merge branch 'master' into next

* master: (34 commits)
  WebSearch: richer `/record` and `/search` API docs
  docs: initial release of CONTRIBUTING guide
  SolrUtils: fix of similar-to-recid result order
  BibRank: fix of similar-to-recid result order
  WebSubmit: link to successfully created record
  WebSearch: fix for record numbering in pagination
  BibMerge: `onclickSubmitButton` missing comma fix
  webcoll: fix for "--language" option
  WebSearch: new Add-to-Search Interface
  Invenio v1.1.4
  I18N: PO file update for the release of v1.1.4
  Invenio v1.0.7
  I18N: PO file update for the release of v1.0.7
  sequtils: more robust cnum generation
  BibSort: `last_updated` column name typo fix
  OAIRepository: OAI-PMH handler URL documented
  BibDocFile: FFT comment/description documentation
  BibRank: (Overflow|ZeroDivision)Error usability
  WebSession: CSRF token in profiling settings
  WebSession: CSRF token in API key settings form
  ...

Conflicts:
	INSTALL
	RELEASE-NOTES
	invenio/legacy/bibdocfile/cli.py
	invenio/legacy/bibrank/word_indexer.py
	invenio/legacy/inveniocfg.py
	invenio/legacy/websearch/templates.py
	invenio/legacy/websearch/webcoll.py
	invenio/legacy/websearch/webinterface.py
	invenio/legacy/websession/webinterface.py
	invenio/legacy/websubmit/functions/Print_Success.py
	invenio/legacy/webuser.py
	modules/bibrank/lib/bibrank_regression_tests.py
	modules/oaiharvest/lib/oai_harvest_daemon.py
	modules/oaiharvest/lib/oai_harvest_web_tests.py
	modules/websearch/doc/hacking/Makefile.am
	modules/websearch/lib/search_engine_config.py
	modules/websearch/lib/websearch_regression_tests.py
	modules/websession/lib/websession_regression_tests.py
	modules/websubmit/lib/websubmit_web_tests.py