Outlines: multilevel table of contents.

### Outlines 

**Outlines** represent table of contents of a document and are very convenient in large documents with complex hierarchical structure. In PDF readers they can be called Bookmarks, Index, Table of Contents. 

#### Specifications
[PDF 1.3](http://acroeng.adobe.com/PDFReference/PDF_1.3/PDF%20Reference%201.3.pdf) - good sample of outlines itself.

#### Supports
  * nested levels
  * unicode titles (different languages)
  * all destination types according to spec (7.2.1)

#### Sample

    /demo/test_outlines.coffee  --> out_outlines.pdf  ( /demo/out_outlines.pdf on the repo )