0.8.0

Breaking

• It is no longer possible to create Context objects. Instead, you can pass a
  dictionary directly to a Templates render method.

  - try template.render(Context(dictionary: ["name": "Kyle"]))
  + try template.render(["name": "Kyle"])

• Template loader are no longer passed into a Context, instead you will need
  to pass the Loader to an Environment and create a template from the
  Environment.

  let loader = FileSystemLoader(paths: ["templates/"])
  
  - let template = loader.loadTemplate(name: "index.html")
  - try template.render(Context(dictionary: ["loader": loader]))
  + let environment = Environment(loader: loader)
  + try environment.renderTemplate(name: "index.html")

• Loaders will now throw a TemplateDoesNotExist error when a template
  is not found.

• Namespace has been removed and replaced by extensions. You can create an
  extension including any custom template tags and filters. A collection of
  extensions can be passed to an Environment.

Enhancements

• Environment is a new way to load templates. You can configure an
  environment with custom template filters, tags and loaders and then create a
  template from an environment.

  Environment also provides a convenience method to render a template directly.

• FileSystemLoader will now ensure that template paths are within the base
  path. Any template names that try to escape the base path will raise a
  SuspiciousFileOperation error.

• New {% filter %} tag allowing you to perform a filter across the contents
  of a block.

  {% filter lowercase %}
    This Text Will Be Lowercased.
  {% endfilter %}

• You can now use {{ block.super }} to render a super block from another {% block %}.

• Environment allows you to provide a custom Template subclass, allowing
  new template to use a specific subclass.

• If expressions may now contain filters on variables. For example
  {% if name|uppercase == "TEST" %} is now supported.

Deprecations

• Template initialisers have been deprecated in favour of using a template
  loader such as FileSystemLoader inside an Environment.

• The use of whitespace inside variable filter expression is now deprecated.

  - {{ name | uppercase }}
  + {{ name|uppercase }}

Bug Fixes

• Restores compatibility with ARM based platforms such as iOS. Stencil 0.7
  introduced compilation errors due to using the Float80 type which is not
  available.