Make goPrev/goNext use a specific search order.
Make goPrev/goNext use a specific search order.

Also add in more unicode characters.

Inspired by the patch in issue #104. Thanks @matthew-cline!

douglas-larocca/vimium,douglas-larocca/vimium,elegantwww/vimium,gdh1995/vimium,decaffeinate-examples/vimium,gdh1995/vimium,borgified/vimium,dimatter/vimium,PrestanceDesign/vimium,zhangmin510/vimium,Aleroniponi/vimium,crazypenguincode/vimium,Lw-Cui/vimium,willsALMANJ/vimium,borgified/vimium,Robinson10240/vimium,csmalin/vimium,smblott-github/vimium-smblott,tuchangwei/vimium,decaffeinate-examples/vimium,PickRelated/vimium,justalittlenoob/vimium,llimllib/vimium,VPashkov/vimium,bkudria/vimium,justalittlenoob/vimium,dimatter/vimium,csmalin/vimium,gdh1995/vimium,tuchangwei/vimium,decaffeinate-examples/vimium,crazypenguincode/vimium,jb55/vimium-plus,wildeyes/vimium,Robinson10240/vimium,hhsue/vimium,bkudria/vimium,mrmr1993/vimium,PrestanceDesign/vimium,willsALMANJ/vimium,philc/vimium,cyrixhero/vimium,douglas-larocca/vimium,mrmr1993/vimium,elderbas/vimium,PickRelated/vimium,dimatter/vimium,PrestanceDesign/vimium,jb55/vimium-plus,VPashkov/vimium,mrmr1993/vimium,VPashkov/vimium,poacher2k/vimium,poacher2k/vimium,Robinson10240/vimium,elderbas/vimium,smblott-github/vimium,smblott-github/vimium,Aleroniponi/vimium,PickRelated/vimium,bkudria/vimium,cyrixhero/vimium,tuchangwei/vimium,elegantwww/vimium,poacher2k/vimium,Lw-Cui/vimium,elegantwww/vimium,elderbas/vimium,willsALMANJ/vimium,cyrixhero/vimium,smblott-github/vimium,wildeyes/vimium,wildeyes/vimium,philc/vimium,zhangmin510/vimium,zhangmin510/vimium,justalittlenoob/vimium,smblott-github/vimium-smblott,csmalin/vimium,shaung/vimium,hhsue/vimium,philc/vimium,Aleroniponi/vimium,Lw-Cui/vimium,hhsue/vimium,borgified/vimium