added gitignore

.gitignore

node_modules/accepts/package.json

node_modules/adm-zip/package.json

node_modules/array-flatten/package.json

node_modules/body-parser/HISTORY.md

node_modules/body-parser/README.md

node_modules/body-parser/lib/read.js

node_modules/body-parser/package.json

node_modules/bytes/package.json

node_modules/child_process/package.json

node_modules/content-disposition/package.json

node_modules/content-type/package.json

node_modules/cookie-signature/package.json

node_modules/cookie/package.json

node_modules/debug/.npmignore

node_modules/debug/CHANGELOG.md

node_modules/debug/README.md

node_modules/debug/bower.json

node_modules/debug/component.json

node_modules/debug/package.json