Update .travis.yml rubies, platforms, postgresql, etc.
Update .travis.yml rubies, platforms, postgresql, etc.

Note, sudo: false is not needed with xenial and was being removed:

https://blog.travis-ci.com/2018-11-19-required-linux-infrastructure-migration

tinaafitz/manageiq,romanblanco/manageiq,juliancheal/manageiq,andyvesel/manageiq,hstastna/manageiq,skateman/manageiq,NickLaMuro/manageiq,branic/manageiq,billfitzgerald0120/manageiq,jrafanie/manageiq,gmcculloug/manageiq,mzazrivec/manageiq,juliancheal/manageiq,romanblanco/manageiq,agrare/manageiq,chessbyte/manageiq,skateman/manageiq,lpichler/manageiq,ManageIQ/manageiq,pkomanek/manageiq,gmcculloug/manageiq,chessbyte/manageiq,billfitzgerald0120/manageiq,djberg96/manageiq,lpichler/manageiq,juliancheal/manageiq,aufi/manageiq,jrafanie/manageiq,jameswnl/manageiq,mkanoor/manageiq,romanblanco/manageiq,chessbyte/manageiq,kbrock/manageiq,djberg96/manageiq,jameswnl/manageiq,tinaafitz/manageiq,yaacov/manageiq,yaacov/manageiq,branic/manageiq,pkomanek/manageiq,syncrou/manageiq,kbrock/manageiq,skateman/manageiq,jrafanie/manageiq,lpichler/manageiq,syncrou/manageiq,jvlcek/manageiq,mkanoor/manageiq,andyvesel/manageiq,djberg96/manageiq,d-m-u/manageiq,aufi/manageiq,borod108/manageiq,jameswnl/manageiq,NickLaMuro/manageiq,mkanoor/manageiq,aufi/manageiq,mkanoor/manageiq,jvlcek/manageiq,ManageIQ/manageiq,andyvesel/manageiq,gmcculloug/manageiq,d-m-u/manageiq,NickLaMuro/manageiq,skateman/manageiq,jvlcek/manageiq,agrare/manageiq,hstastna/manageiq,kbrock/manageiq,branic/manageiq,NickLaMuro/manageiq,pkomanek/manageiq,ManageIQ/manageiq,billfitzgerald0120/manageiq,agrare/manageiq,romanblanco/manageiq,chessbyte/manageiq,branic/manageiq,aufi/manageiq,tinaafitz/manageiq,lpichler/manageiq,gmcculloug/manageiq,hstastna/manageiq,agrare/manageiq,borod108/manageiq,mzazrivec/manageiq,ManageIQ/manageiq,mzazrivec/manageiq,jvlcek/manageiq,borod108/manageiq,pkomanek/manageiq,mzazrivec/manageiq,d-m-u/manageiq,juliancheal/manageiq,tinaafitz/manageiq,yaacov/manageiq,hstastna/manageiq,syncrou/manageiq,yaacov/manageiq,syncrou/manageiq,djberg96/manageiq,kbrock/manageiq,billfitzgerald0120/manageiq,jrafanie/manageiq,jameswnl/manageiq,andyvesel/manageiq,borod108/manageiq,d-m-u/manageiq