Update the docs copyright date and fix some warnings.
Update the docs copyright date and fix some warnings.

PegasusWang/mezzanine,geodesign/mezzanine,sjdines/mezzanine,stbarnabas/mezzanine,fusionbox/mezzanine,Skytorn86/mezzanine,webounty/mezzanine,readevalprint/mezzanine,Cajoline/mezzanine,wrwrwr/mezzanine,Skytorn86/mezzanine,dsanders11/mezzanine,SoLoHiC/mezzanine,readevalprint/mezzanine,joshcartme/mezzanine,viaregio/mezzanine,gradel/mezzanine,cccs-web/mezzanine,AlexHill/mezzanine,dustinrb/mezzanine,spookylukey/mezzanine,gradel/mezzanine,vladir/mezzanine,eino-makitalo/mezzanine,biomassives/mezzanine,christianwgd/mezzanine,ryneeverett/mezzanine,dsanders11/mezzanine,adrian-the-git/mezzanine,eino-makitalo/mezzanine,wrwrwr/mezzanine,jjz/mezzanine,orlenko/plei,orlenko/plei,damnfine/mezzanine,joshcartme/mezzanine,ZeroXn/mezzanine,gradel/mezzanine,ZeroXn/mezzanine,dovydas/mezzanine,dovydas/mezzanine,Cajoline/mezzanine,vladir/mezzanine,viaregio/mezzanine,ryneeverett/mezzanine,Kniyl/mezzanine,nikolas/mezzanine,readevalprint/mezzanine,jjz/mezzanine,Cicero-Zhao/mezzanine,emile2016/mezzanine,SoLoHiC/mezzanine,dekomote/mezzanine-modeltranslation-backport,PegasusWang/mezzanine,dovydas/mezzanine,fusionbox/mezzanine,orlenko/sfpirg,biomassives/mezzanine,agepoly/mezzanine,saintbird/mezzanine,frankchin/mezzanine,sjuxax/mezzanine,joshcartme/mezzanine,wbtuomela/mezzanine,nikolas/mezzanine,jjz/mezzanine,SoLoHiC/mezzanine,biomassives/mezzanine,wbtuomela/mezzanine,orlenko/plei,AlexHill/mezzanine,mush42/mezzanine,promil23/mezzanine,wyzex/mezzanine,vladir/mezzanine,dsanders11/mezzanine,PegasusWang/mezzanine,molokov/mezzanine,sjdines/mezzanine,mush42/mezzanine,saintbird/mezzanine,christianwgd/mezzanine,molokov/mezzanine,guibernardino/mezzanine,promil23/mezzanine,geodesign/mezzanine,webounty/mezzanine,dustinrb/mezzanine,emile2016/mezzanine,industrydive/mezzanine,batpad/mezzanine,gbosh/mezzanine,cccs-web/mezzanine,webounty/mezzanine,nikolas/mezzanine,Kniyl/mezzanine,mush42/mezzanine,christianwgd/mezzanine,sjuxax/mezzanine,adrian-the-git/mezzanine,theclanks/mezzanine,guibernardino/mezzanine,damnfine/mezzanine,molokov/mezzanine,adrian-the-git/mezzanine,jerivas/mezzanine,damnfine/mezzanine,eino-makitalo/mezzanine,dustinrb/mezzanine,tuxinhang1989/mezzanine,ryneeverett/mezzanine,frankchin/mezzanine,scarcry/snm-mezzanine,Cajoline/mezzanine,stbarnabas/mezzanine,viaregio/mezzanine,dekomote/mezzanine-modeltranslation-backport,spookylukey/mezzanine,frankier/mezzanine,geodesign/mezzanine,industrydive/mezzanine,wbtuomela/mezzanine,gbosh/mezzanine,sjuxax/mezzanine,frankchin/mezzanine,Kniyl/mezzanine,tuxinhang1989/mezzanine,orlenko/sfpirg,theclanks/mezzanine,promil23/mezzanine,douglaskastle/mezzanine,stephenmcd/mezzanine,scarcry/snm-mezzanine,ZeroXn/mezzanine,frankier/mezzanine,douglaskastle/mezzanine,agepoly/mezzanine,emile2016/mezzanine,spookylukey/mezzanine,industrydive/mezzanine,sjdines/mezzanine,agepoly/mezzanine,dekomote/mezzanine-modeltranslation-backport,douglaskastle/mezzanine,gbosh/mezzanine,saintbird/mezzanine,Cicero-Zhao/mezzanine,theclanks/mezzanine,jerivas/mezzanine,stephenmcd/mezzanine,batpad/mezzanine,wyzex/mezzanine,stephenmcd/mezzanine,wyzex/mezzanine,frankier/mezzanine,scarcry/snm-mezzanine,jerivas/mezzanine,Skytorn86/mezzanine,orlenko/sfpirg,tuxinhang1989/mezzanine