Removed implicit 'any' typed from typescript file

I Fixed the problem described in Issue #1086.

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*Copy of the Issue-Description:*

there are around 20 compile errors in the typescript definition file `/build/phaser.d.ts`.

The TS compiler doesn't show them with the default configuration. But one can activate the `--noimplicitany`-option to prevent the *implicit 'any'* type, which results in the 20 errors. 

From a first glimpse at `/build/phaser.d.ts`, it looked like only `:any` has to be added 20 times...

In Visual Studio this stops the whole compiling process.
In both, Eclipse and VS, the error-view is flooded with annoying error messages, which detract from finding bugs in the actual game code.