Batch of improvements

[sveetch]

Project now collect many plugins and starts to be a little messy.

There is some improvements we can think about:

• [x] New package structure with setup.cfg, proper makefile and correct environment;
• [x] We need at least factories and basic tests on models, and maybe plugin checks;
• [x] Use FileField instead of ImageField to enable SVG file support;
• [x] Some plugin templates (at least Card) try to reach some field value like image.url without to check it's not an empty value;
• [x] Drop any Python2 support if any (at least decorator for models);
• [x] Research to improve plugin form layout and ergonomy, so we could add a little more field on components without making them too complicated;
• [x] (cancelled) Organize each plugin in its own module, like Hero form, models, default and choices stored in a hero/ ? (I'm not sure about this org, what about admin/ or models/ that Django automatically lurking?)
• [x] Better documentation (update, improve component descriptions, include component sketch images, publish on RTFD, etc..);
• [ ] Keep away to use helper default value in migrations when it's is None in model, Django assume this is a change, even the helper method return a None value. Else it trigger a new pending migration forever;

[sveetch]

For svg, i propose to switch to Filefield (excepted for Album and Slide items ?) and possibly add custom validation method to make dumb condition "if filename ends with '.svg' so it would do nothing for svg, but for every other kind it would use the image validator from django.

There is some solution around (stackoverflow) to valid SVG but it will require much more works that it would need to be in its own new package.

[sveetch]

I did also some stuff (model method and inclusion template) to have a "smart format" usage with sorl in kls project, this should be backported here.

[sveetch]

Current work is in branch next_generation_app

[sveetch]

Plugin organization change to split them in their own app to load (each one defined in INSTALLED_APPS) is cancelled until i find how to properly include transition with model/data/migration since i would want features from this batch to be accessible to old projects.

[sveetch]

Current task done have been release in v0.6.0

[sveetch]

Plugin form layout and ergonomy improvements have started in new branch for v0.7:

https://github.com/emencia/cmsplugin-blocks/tree/v070

[sveetch]

Documentation has been done in branch for v0.7

[sveetch]

The v1.0.0 (yet to be released) will totally finish this issue.