update fb-sage to latest commit in install.sh, use `npx gulp` to use local gulp, support for `sh install.sh projectname` to change fb-sage->projectname in a bunch of config files
update fb-sage to latest commit in install.sh, use `npx gulp` to use local gulp, support for `sh install.sh projectname` to change fb-sage->projectname in a bunch of config files

firebelly/fb-bedrock,firebelly/fb-bedrock,firebelly/fb-bedrock