Add curve edge with arrow head rendering.
Rename edges renderers files in examples.
Fixing custom edge example.
Enchance edge renderer selection.
Fix issue with incorrect node type renderer.
Added a plugin for drag nodes and modified 2 examples for see how to do it
Deleted an import from a HTML file
Fixed some imports in HTML files and an instatation of a `sigma` object
Added the declaration of a few JS objects
Fixes `gjslint.py` not found. See https://github.com/wzr1337/grunt-closure-linter/issues/8
Fixed the size check and the dragging with rotated graphs
Now the  parameter isn't needed, it can be obtained from the  on renderer's .
Merge pull request #234 from jeroencoumans/master

Fixes `gjslint.py does not exist`
Just corrected some typos
Change edge type selection mechanism to default.
Fixing edge renerers path in examples.
dev: make it easier to build for newbies by not requiring global 'grunt-cli'.
adds grunt-cli as devDependency and uses it via 'npm run build'.
Correcting some canvas renderers documentation
Updating the gexf parser used by the plugin
As per this precise release: https://github.com/Yomguithereal/gexf-parser/releases/tag/0.1.1
Updated NPM dependencies versions in package.json