* Temple.Svg
- scopes update_mdn_task to the temple namespace
- introduces new temple.convert mix task to convert plain HTML and SVG to
Temple syntax
* Rename Temple.Tags to Temple.Html
* Remove hackney
I'm not sure why it was even in there ¯\_(ツ)_/¯
* Update floki
* Document temple.convert in README
Recursively calling the macros works fine if you `import` the whole
module wherever you are using your components, but not if you `require`
the module.
This is because importing brings in the all the macros into the callers
namespace, which allows them to be called just by the macro name. When
you `require` the module, it will look for the generated 2-arity macro
in the callers namespace, which probably doesn't exist.
We get around this by not recursively calling them and avoiding the
problem all togther. A few utility functions solves the original issue
of wanting to DRY the file.
