Update emu-austral-ornithology.csl

 * number in a jounral article is bold
 * use full journal tiles
 * add report as seperate case
 * update link to the documentation

cf. https://forums.zotero.org/discussion/42046?page=1#Item_2
Merge pull request #1235 from zuphilip/patch-1

Update emu-austral-ornithology.csl