add node modules to repo

app/node_modules/caseless/README.md

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+## Caseless -- wrap an object to set and get property with caseless semantics but also preserve caseing.
+
+This library is incredibly useful when working with HTTP headers. It allows you to get/set/check for headers in a caseless manner while also preserving the caseing of headers the first time they are set.
+
+## Usage
+
+```javascript
+var headers = {}
+  , c = caseless(headers)
+  ;
+c.set('a-Header', 'asdf')
+c.get('a-header') === 'asdf'
+```
+
+## has(key)
+
+Has takes a name and if it finds a matching header will return that header name with the preserved caseing it was set with.
+
+```javascript
+c.has('a-header') === 'a-Header'
+```
+
+## set(key, value[, clobber=true])
+
+Set is fairly straight forward except that if the header exists and clobber is disabled it will add `','+value` to the existing header.
+
+```javascript
+c.set('a-Header', 'fdas')
+c.set('a-HEADER', 'more', false)
+c.get('a-header') === 'fdsa,more'
+```
+
+## swap(key)
+
+Swaps the casing of a header with the new one that is passed in.
+
+```javascript
+var headers = {}
+  , c = caseless(headers)
+  ;
+c.set('a-Header', 'fdas')
+c.swap('a-HEADER')
+c.has('a-header') === 'a-HEADER'
+headers === {'a-HEADER': 'fdas'}
+```