A bunch of fixes to express declaration

- Move Express-prefixed interface names into internal module as
  unprefixed names
- The importing code will use express.Response instead of
  ExpressServerResponse
- Internal definitions can just use Response instead of
  ExpressServerResponse
- Response should extend http.Response to be able to type check .end
  for example
Added Observable.zip() which was missing.

https://github.com/Reactive-Extensions/RxJS/blob/master/doc/api/core/observable.md#rxobservablezipargs
Changed Observable.zip<TResult>(...) to Observable.zip<T>(...)
Merge pull request #1261 from vegemite4me/master

Added Observable.zip() which was missing.
Merge pull request #1077 from sgronblo/improve_express_d_ts

Namespacing for express definition
Update requested definitions to just be a link
Tightened up ValidationOptions

Using a combination of the source code and the documentation at
http://jqueryvalidation.org/validate/ I've tightened up the
ValidationOptions.  NB success remains as any because (AFAIK) it's not
possible to model alternate overloads in an interface with TypeScript (
https://typescript.codeplex.com/workitem/1893 ).
Merge pull request #1270 from johnnyreilly/master

jQuery Validation: Tightened up ValidationOptions
express: implicity any and formatting
Update node.d.ts

Update signature of EventEmitter#emit
Merge pull request #1271 from loyd/master

Update node.d.ts
Add no-arg overload of selection.data()

There is a no-arg version of [the `data()` method on selections](https://github.com/mbostock/d3/wiki/Selections#wiki-data) which returns the previously-assigned data. From the docs:

> If values is not specified, then this method returns the array of data for the first group in the selection.
Merge pull request #1273 from pelotom/patch-2

Add no-arg overload of selection.data()
Fix when compiling with the latest TypeScript (develop branch)

Latest TypeScript complains about Array type used without a generic parameter.

I suggest replacing Array with any[], which works for both old and new TypeScript versions.

  knockout.d.ts(171,47): ↵
  error TS2173: Generic type references must include all type arguments. ↵
  knockout.d.ts(172,76): error TS2173: Generic type references must include all type arguments. ↵
  knockout.d.ts(200,36): error TS2173: Generic type references must include all type arguments. ↵
  knockout.d.ts(202,36): error TS2173: Generic type references must include all type arguments. ↵
  knockout.d.ts(204,38): error TS2173: Generic type references must include all type arguments. ↵
  knockout.d.ts(363,110): error TS2173: Generic type references must include all type arguments. ↵
  knockout.d.ts(489,71): error TS2173: Generic type references must include all type arguments. ↵
  knockout.d.ts(490,66): error TS2173: Generic type references must include all type arguments. ↵
  knockout.d.ts(491,90): error TS2173: Generic type references must include all type arguments. ↵
  knockout.d.ts(492,85): error TS2173: Generic type references must include all type arguments. ↵
Merge pull request #1274 from mihailik/patch-4

Fix when compiling with the latest TypeScript (develop branch)
d3: add additional type parameter to array functions
Merge pull request #1275 from nestalk/master

d3: add additional type parameter to array functions