Added <macro name="substitute-title"> for unsigned articles

Added <macro name="substitute-title"> to cope with unsigned articles and reviews, where the name of the newspaper or periodical (=container-title) needs to stand in place of the author (see CMoS 14.207 and 14.217).
Create medienwandel-medienwechsel-medienwissen-chronos.csl
Update and rename medienwandel-medienwechsel-medienwissen-chronos.csl to nccr-mediality-chronos.csl

Change of names
Create helsinki-theology

Added a style from Helsinki University's Faculty of Theology
[APA] Bracket website/bog type and remove blog/website title
Re https://forums.zotero.org/discussion/39029/apa-mla-citation-for-websites-is-not-correct/
[MLA] Fix position of website/blog type
Create iso690-note-fr

New style ISO 690:2010 "note" for french locale
full description here https://github.com/msaby/wip-zotero-styles/blob/master/README.md

ISO 690:2010 is not freely available in french translation, but the english version is available here:
http://www.medline.org.cn/attachment/201364/1370309271657.pdf

The only differences between the two versions are the translation of a few english words, like medium types (map->carte, etc.)
Create ameghiniana.csl

This is the citation style for Ameghiniana, the journal of the Asociación Paleontológica Argentina. www.ameghiniana.org
Fix a capitalization error in a macro call

URL -> url
Shorter version of "substitute-title" macro

Now that pandoc-citeproc has been fixed (see https://github.com/jgm/pandoc-citeproc/issues/58), this shorter version of the "substitute-title" macro works in pandoc, too.
Add 2 links

Add a link to original template
Add a link to documentation (in french, the readme.md file in my github account).
(ISO 690 standard is not free. You may find it on the internet, but I'm not sure the link would be stable over time)
Merge pull request #1054 from msaby/iso690notefr

Create iso690-note-fr
Update ameghiniana.csl
Update ameghiniana.csl
Create collection-du-centre-jean-berard.csl
CSHLP sorts by non-dropping particles
replace Health Economics, Policy and Law with correct (hopefully) independent style
Create independent style for Veterinary Record, which does not follow BMJ (at all). Re-link related styles to that one.
Update collection-du-centre-jean-berard.csl
Merge pull request #1072 from NMonteix/CJB

Cjb