in order to make #inpect to not blow up
screen wher controller with request and helpers
included in instance of the ViewModel

…endency

bump cells-erb dev dependency to >= 0.1.0

README: Build badge point to trailblazer/cells

Ruby 2.2 is reaching it's end of life at the end of the month. But I
think it's useful to test recent Ruby versions as well.

Update tested Ruby version

Add concise #inspect to ViewModel

Fix warning for undefined instance variable

Tilt::Cache is a generic key-value store. This works exactly the
same, if we move some code around.

The find loop is necessary to find out which prefix contains the
template that we are looking for.

Template parsing happens for the first template that is found.

If we split the file lookup and template building, the code becomes
easier to read and easier to maintain.

Tilt cache

Drop support for old rubies

See https://blog.travis-ci.com/2018-11-19-required-linux-infrastructure-migration for more details

CI: Drop unused Travis sudo: false directive

update minitest syntax

Update documentation links

…e-builder (trailblazer#492)

In `Caching`, we compile `cache_fillter_args` from `args` and `kws`. As per
the existing implementation, cache filters do not expect/can't receive keyword
arguments anyway.

CI: add Ruby 3.2 to the test matrix

As per https://guides.rubygems.org/specification-reference/#metadata,
add metadata to the gemspec file. This'll allow people to more easily
access the source code, raise issues and read the changelog. These
bug_tracker_uri, changelog_uri, documentation_uri, homepage_uri,
source_code_uri, and wiki_uri links will appear on the rubygems page at
https://rubygems.org/gems/cells and be available via the Rubygems
API after the next release.

Add project metadata to the gemspec