Bibliography and Citations support

[szaghi]

Markdown and MaTiSSe lack of a standard syntax supporting citations.

MaTiSSe should support citations... a starting point could be what has been already done by RMarkdown:

http://rmarkdown.rstudio.com/authoring_bibliographies_and_citations.html

[szaghi]

useful modules:

• https://github.com/sciunto-org/python-bibtexparser/tree/master
• http://pybtex.org/