added gitignore

node_modules/process/package.json

node_modules/proxy-addr/package.json

node_modules/qs/package.json

node_modules/range-parser/package.json

node_modules/raw-body/package.json

node_modules/send/HISTORY.md

node_modules/send/package.json

node_modules/serve-static/HISTORY.md

node_modules/serve-static/package.json

node_modules/setprototypeof/package.json

node_modules/statuses/package.json

node_modules/type-is/package.json

node_modules/unpipe/package.json

node_modules/util/node_modules/inherits/package.json

node_modules/util/package.json

node_modules/utils-merge/package.json

node_modules/vary/package.json