BibConvert: fix arXiv to INSPIRE category mapping

* Fixes an issue with mapping of arXiv categories to INSPIRE
  style categories.

* Moves from calling an external XML file to using BibConvert
  KB magic to do the lookup.
BibConvert: add Brief/Temp entry on arXiv XSLT
installation: remove missing file

* Fixes broken installation process after removing the reference
  to the file deleted in previous commit c4edc9b in the Makefile
BibConvert: do match instead of search in KB
WebStyle: add temporary banner
WebStyle: revert upgrade banner
Webseach: updates citesummay templates
BibHarvest: create RT ticket on harvest
WebSearch: fixes manage docfiles link
installation: add missing example conf. var.
oaiharvest: do not add records to HP for arXiv
WebSubmit: adds Bibliotools form

* Adds a new form to INSPIRE called bibliotoools,
  allowing users to convert their LaTeX sources into BibTeX.
* Adds unit tests
WebSubmit: add BibTeX config

* Adds the WebSubmit DB configuration necessary for Bibliotools
  to work, adding elements using a new naming schema having a prefix
  "BibTex_".
* Amends the Bibtex function accordingly.
* Fixes some PEP8 and kwalitee fixes
WebStyle: update jobs filter with physics
installation: fix index DB load issue for Invenio master
Webstyle: add css for bibedit revisions diff
installation: overhaul KB loading

* Changes the way KBs are loaded into the database, by using
  a Python script instead of less secure "LOAD LOCAL INFILE".

* Changes behaviour for install-dbchanges for KBs as it now
  removes all previously defined KBs before adding our own.

* Renames weblinks.dat to weblinks.kb for consistency.

* Removes some wrong or broken KB entries across the board.

* Adds missing installation of CODEN KB.
BibFormat: add number of citations to LaTeX format
WebStyle: add version parameter to inspire css

* Prevents browsers from caching the css when the file has
  changed on disk
installation: add info about required libraries