Create afjem-elsevier-vancouver.csl
Update afjem-elsevier-vancouver.csl

Made some fixes related to unused macros in thesis
Update and rename afjem-elsevier-vancouver.csl to african-journal-of-emergency-medicine.csl

Made changes based on the style-requirement. This file is validated using rake and online validator. This file is well-formed and valid.
Update african-journal-of-emergency-medicine.csl

Updated the documentation link.
Merge pull request #1096 from grnathan2000/patch-1

Create afjem-elsevier-vancouver.csl