grunt: dev typeahead installation

* Copies development version of typeahead.js
  instead of minified one.

Signed-off-by: Kamil Neczaj <kamil.neczaj@cern.ch>
ranker: RnkCITATIONDICT model update

* Adds new model created in 742f3500c86a076fabe65523f38331392b5529ae.
  (closes #1905)

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
ranker: PEP8 and PEP257 improvements

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
checker: model addition

* Adds new SQLAlchemy model for table 'bibcheck_rules'.
  (addresses #1889)

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
pdfchecker: model addtion

* Adds new SQLAlchemy model for table 'bibARXIVPDF'. (addresses #1790)

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
editor: fix BibEDITCACHE model

* Adds missing table name definition.  (addresses #1790)

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>