Auto merge of #810 - burtonageo:master, r=csherratt
Auto merge of #810 - burtonageo:master, r=csherratt

Fix code which caused E0309 warnings, remove trailing commas from trait bounds lists

Remove some trailing spaces from the end of trait bounds lists on fns

tanderegg/gfx,JohnColanduoni/gfx,ColinKinloch/gfx,davll/gfx,JohnColanduoni/gfx,bvssvni/gfx-rs,tanderegg/gfx,mitchmindtree/gfx-rs,aepsil0n/gfx-rs,ColinKinloch/gfx,Bastacyclop/gfx,gfx-rs/gfx-rs,sectopod/gfx-rs