chore: install bower before running npm install on travis
chore: install bower before running npm install on travis

dmackerman/angular-input-masks,neokyox/angular-input-masks,aktary/angular-input-masks,aktary/angular-input-masks,Symplicity/angular-input-masks,Testoni/angular-input-masks,wesleifreitas/angular-input-masks,smilight/angular-input-masks,smilight/angular-input-masks,pavelpykhtin/angular-input-masks,anisdjer/angular-input-masks,assisrafael/angular-input-masks,mcarabolante-gradus/angular-input-masks,Testoni/angular-input-masks,anisdjer/angular-input-masks,mcarabolante-gradus/angular-input-masks,cdupoiron/angular-input-masks,dmackerman/angular-input-masks,pavelpykhtin/angular-input-masks,wesleifreitas/angular-input-masks,assisrafael/angular-input-masks,cdupoiron/angular-input-masks,neokyox/angular-input-masks,Symplicity/angular-input-masks