Create journal-of-cardiothoracic-and-vascular-anesthesia

Style sheet for the Journal of Cardiothoracic and Vascular Anesthesia
fix formatting of citations to be superscripts
Update and rename journal-of-cardiothoracic-and-vascular-anesthesia to journal-of-cardiothoracic-and-vascular-anesthesia.csl

give file .csl extension
put <rights> field on a single line
fix validation errors found by travis
fix line wrapping/remove returns
fix one more validation error
Merge pull request #692 from z0lo/patch-1

Create journal-of-cardiothoracic-and-vascular-anesthesia