do a clean-install instead of just clean for clean-start
do a clean-install instead of just clean for clean-start

Fixes #77

CovalentLabs/project-w-app,leviathan88/furkan,preboot/angular-webpack,leviathan88/furkan,lodybo/testing-in-angular,aismwise/hackers-toolkit,carluccyo/reese-admin,prohorova/angular2-map-component,stardom84/clinics,jgiunti/angular2-webpack-bootsrapv4-starter,headfwd/mrbox-front-end,jojanper/angular-app,tux2323/angular2-webpack,jgiunti/angular2-webpack-bootsrapv4-starter,internetjesus/ng2-dd,Foxandxss/angular2-webpack,headfwd/mrbox-front-end,preboot/angular-webpack,Znow/ZnowBlog,aitor-garcia-p/webgira-showcase,aitor-garcia-p/webgira-showcase,rborgwald/recipe-ui,CovalentLabs/project-w-app,rborgwald/recipe-ui,jojanper/angular-app,preboot/angular2-webpack,lodybo/testing-in-angular,preboot/angular-webpack,aismwise/hackers-toolkit,kattsushi/electron-angular2-seed,tux2323/angular2-webpack,leviathan88/furkan,carluccyo/reese-admin,flosky/fashioncloud-angular2-hackathon,jgiunti/angular2-webpack-bootsrapv4-starter,flosky/fashioncloud-angular2-hackathon,internetjesus/ng2-dd,Foxandxss/angular2-webpack,prohorova/angular2-map-component,Zinadore/capstoneed-common,flosky/fashioncloud-angular2-hackathon,Zinadore/capstoneed-common,headfwd/mrbox-front-end,Foxandxss/angular2-webpack,rborgwald/recipe-ui,Znow/ZnowBlog,lodybo/testing-in-angular,prohorova/angular2-map-component,aitor-garcia-p/webgira-showcase,stardom84/clinics,preboot/angular2-webpack,CovalentLabs/project-w-app,rborgwald/recipe-ui,internetjesus/ng2-dd,Znow/ZnowBlog,aismwise/hackers-toolkit,stardom84/clinics,tux2323/angular2-webpack,Zinadore/capstoneed-common,preboot/angular2-webpack,jojanper/angular-app,prohorova/angular2-map-component,carluccyo/reese-admin,kattsushi/electron-angular2-seed,kattsushi/electron-angular2-seed