add unit tests for parsing hosts with ipv6 support
add unit tests for parsing hosts with ipv6 support

nikhilraog/boto,acourtney2015/boto,trademob/boto,darjus-amzn/boto,vishnugonela/boto,khagler/boto,vijaylbais/boto,awatts/boto,nexusz99/boto,SaranyaKarthikeyan/boto,Asana/boto,yangchaogit/boto,ramitsurana/boto,ocadotechnology/boto,bleib1dj/boto,felix-d/boto,dimdung/boto,campenberger/boto,podhmo/boto,TiVoMaker/boto,ekalosak/boto,pfhayes/boto,zachmullen/boto,Pretio/boto,stevenbrichards/boto,alfredodeza/boto,jotes/boto,rayluo/boto,abridgett/boto,bryx-inc/boto,israelbenatar/boto,j-carl/boto,garnaat/boto,janslow/boto,revmischa/boto,rosmo/boto,jindongh/boto,elainexmas/boto