allow stock PHP linter to lint files marked HTML
allow stock PHP linter to lint files marked HTML

jasonrhaas/SublimeLinter3,simonzack/SublimeLinter3,simonzack/SublimeLinter3,SublimeLinter/SublimeLinter3,smanolloff/SublimeLinter3,zenlambda/SublimeLinter3,ikappas/SublimeLinter3,ikappas/SublimeLinter3,zenlambda/SublimeLinter3,lunixbochs/sublimelint,paulirish/SublimeLinter3,SublimeLinter/SublimeLinter3,jasonrhaas/SublimeLinter3,Raynos/SublimeLinter3-raynos,paulirish/SublimeLinter3,lunixbochs/sublimelint,smanolloff/SublimeLinter3