Use SimpliePie solution instead of absolute-url-deriver

& update deps
Handle non utf-8 content

Hopefully this will fix all the crazy utf-8 bug
Simplify Flickr image finder
Simplify the way to retrieve extractor & improver

Instead of calling ->match() and then ->getBlabla(), ->match() return the object instead of the alias
Little refactor for Internal

and use interla function from Response instead of custom one
Some simplification
Fix a typo

And a test for each chain class
Fix bad c/p

And another typo
Remove Assetic
Use gulp to generate css & js
Fix test & cleanup composer.json

Force the css files order when performing the last minification
Add morris, watch & clean gulp task

- cleanup paths
- add del package to cleanup the build folder
Update deps