[travis.yml] Add sudo: false
[travis.yml] Add sudo: false

mathiasbynens/acorn,Rich-Harris/acorn,mysticatea/acorn,happibum/acorn,TimothyGu/acorn,happibum/acorn,ternjs/acorn,TimothyGu/acorn,mathiasbynens/acorn,mathiasbynens/acorn,marijnh/acorn,MarcelGerber/acorn,marijnh/acorn,MarcelGerber/acorn,marijnh/acorn,ternjs/acorn,Rich-Harris/acorn,TimothyGu/acorn,btmills/acorn,ternjs/acorn,MarcelGerber/acorn,ajaxorg/acorn,mysticatea/acorn,ajaxorg/acorn,btmills/acorn,ajaxorg/acorn,btmills/acorn,mysticatea/acorn,Rich-Harris/acorn,happibum/acorn