Rewrote most of it.. to accomplish #52
(also the old code been a lil dirty imo :))

Returns now a "meta" field instead of two - height and maxheight - fields.
The meta object contains these fields:
```
{
  maxHeight: int,
  maxWidth: int,
  images: [{
      height: int,
      offsetY: int,
      totalHeight: int,
      width: int
    },...]
}
```
Updates the generator functions to adopt the changes introduced to
the spriter script. See #52

Also did some cleanup to the output string building.
Version bump @0.3.4

### 0.3.4
+ Added width and height properties to the spriter output [@alpadev] (https://github.com/alpadev)
 - 85a04f58 Updates the generator functions to adopt the changes introduced to the spriter script. See #52 [@alpadev]
 - 6416c26d Rewrote most of it.. to accomplish #52 (also the old code been a lil dirty imo :)) [@alpadev]
Adds "dimensions" config flag examples (false by default)
Updates the output generators accordingly
Updates the README with details about the setting
Merge pull request #54 from alpadev/master

Images measurements support