Merge pull request #1 from bjowes/master

Added new shapes!
Updated shape syntax
Coverage instrumentation in tests
Updated readme and changes to the coverage setting on the ci server
Updated readme and changes to the coverage setting on the ci server
Updated readme and changes to the coverage setting on the ci server
Update README.md
Updated readme and changes to the coverage setting on the ci server
Merge remote-tracking branch 'origin/master'
Updated readme and changes to the coverage setting on the ci server
Release 0.2.5

* Support for new shapes circle,  irregular rectangle
* Support for styling of links
* Support for newlines in texts
* Centered text on links
* Shaded background for text on links
* Support for click on nodes
Release 0.2.6

* Default shape set to rect when none is set
Update bower.json
Update README.md
Version fix
Version fix
Version fix
Added test for caps in vertices
Update README.md

Added a link to a live example.
Update README.md

Added link to jsbin thanks to Christian Genco.
Better support for unicode and cyrillic letters