docs: modified install documentation
fix: path in install documentation was wrong
cleanup: reworked the widget-params-type-system a little bit
fix: updated ckeditor and made it work
Merge branch 'overlays' of https://github.com/maschbd/pyramid_epfl

Conflicts:
	solute/epfl/fields.py
Merge branch 'widget_sprint1' of https://github.com/maschbd/pyramid_epfl into widget_sprint1

Conflicts:
	solute/epfl/fields.py
Merge pull request #3 from maschbd/widget_sprint1

Scaffolds
Removed old ck-editor instance
New static-routing registering for widgets and components
upload-field/widget: first version
Merge remote-tracking branch 'maschbd/widget_sprint1' into widget_sprint1

Conflicts:
	solute/epfl/fields.py
	solute/epfl/widgets/__init__.py
	solute/epfl/widgets/suggest/suggest.py
upload-field/widget: version 2
fix: (re)added epfl_pyramid_barebone
feature: added new Widget-Param-Type: optional integer
new feature: added jinja2-filter "optional_html_attr"
new feature: preview now configurable for upload-widgets
new feature: temp-data-provider as zope.interface
fix: removed debug output
new feature: added char-count for entry-widgets
fix: jinja2-escaping behavior