added cairo-1.10.2 for "node-canvas" or other things that need cairo

**To Test**

after `c9pm install cairo`

```
$ cd node_modules
$ git clone git://github.com/elspoono/node-canvas-heroku.git canvas
$ cd canvas
$ node-waf configure build
```

`node-canvas-heroku` is a modified version of node-canvas to allow builds on heroku
but was the fastes way to do what i needed...

_test.js_ - example i pulled from README.md on node-canvas
```js
var Canvas = require('canvas')
  , canvas = new Canvas(200,200)
  , ctx = canvas.getContext('2d');

ctx.font = '30px Impact';
ctx.rotate(0.1);
ctx.fillText("Awesome!", 50, 100);

var te = ctx.measureText('Awesome!');
ctx.strokeStyle = 'rgba(0,0,0,0.5)';
ctx.beginPath();
ctx.lineTo(50, 102);
ctx.lineTo(50 + te.width, 102);
ctx.stroke();

console.log('<img src="' + canvas.toDataURL() + '" />');
```

_output_
```
<img src="data:image/png;base64,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" />
```