Bump haml from 4.0.7 to 5.0.0

Bumps haml from 4.0.7 to 5.0.0.

Changelog

*Sourced from [haml's changelog](https://github.com/haml/haml/blob/master/CHANGELOG.md).* > ## 5.0.0 > > Released on April 26, 2017 > ([diff](https://github.com/haml/haml/compare/4.0.7...v5.0.0)). > > Breaking Changes > > * Haml now requires Ruby 2.0.0 or above. > * Rails 3 is no longer supported, matching the official > [Maintenance Policy for Ruby on Rails](http://weblog.rubyonrails.org/2013/2/24/maintenance-policy-for-ruby-on-rails/). > Use Haml 4 if you want to use Rails 3. > (Tee Parham) > * Remove `:ugly` option ([#894](https://github-redirect.dependabot.com/haml/haml/pull/894)) > * The `haml` command's debug option (`-d`) no longer executes the Haml code, but > rather checks the generated Ruby syntax for errors. > * Drop parser/compiler accessor from `Haml::Engine`. Modify `Haml::Engine#initialize` options > or `Haml::Template.options` instead. (Takashi Kokubun) > * Drop dynamic quotes support and always escape `'` for `escape_html`/`escape_attrs` instead. > Also, escaped results are slightly changed and always unified to the same characters. (Takashi Kokubun) > * Don't preserve newlines in attributes. (Takashi Kokubun) > * HTML escape interpolated code in filters. > [#770](https://github-redirect.dependabot.com/haml/haml/pull/770) > (Matt Wildig) > > :javascript > #{JSON.generate(foo: "bar")} > Haml 4 output: {"foo":"bar"} > Haml 5 output: {"foo":"bar"} > > Added > > * Add a tracing option. When enabled, Haml will output a data-trace attribute on each tag showing the path > to the source Haml file from which it was generated. Thanks [Alex Babkin](https://github.com/ababkin). > * Add `haml_tag_if` to render a block, conditionally wrapped in another element (Matt Wildig) > * Support Rails 5.1 Erubi template handler. > * Support Sprockets 3. Thanks [Sam Davies](https://github.com/samphilipd) and [Jeremy Venezia](https://github.com/jvenezia). > * General performance and memory usage improvements. (Akira Matsuda) > * Analyze attribute values by Ripper and render static attributes beforehand. (Takashi Kokubun) > * Optimize attribute rendering about 3x faster. (Takashi Kokubun) > * Add temple gem as dependency and create `Haml::TempleEngine` class. > Some methods in `Haml::Compiler` are migrated to `Haml::TempleEngine`. (Takashi Kokubun) > > Fixed > > * Fix for attribute merging. When an attribute method (or literal nested hash) > was used in an old style attribute hash and there is also a (non-static) new > style hash there is an error. The fix can result in different behavior in > some circumstances. See the [commit message](https://github.com/haml/haml/tree/e475b015d3171fb4c4f140db304f7970c787d6e3) > for detailed info. (Matt Wildig) > * Make escape_once respect hexadecimal references. (Matt Wildig) > ... (truncated)

Commits

- [`78e2a09`](https://github.com/haml/haml/commit/78e2a09d3b8c6f7cdb3bb87ff84dce8fad5598ac) Version 5.0.0 - [`e5d6409`](https://github.com/haml/haml/commit/e5d6409bad6da77c697efc924c36ad2c5405b680) Note about [#770](https://github-redirect.dependabot.com/haml/haml/issues/770) in Haml 5 changes - [`1bac6f9`](https://github.com/haml/haml/commit/1bac6f902fe7683317b46ddcf0fdbbab6ffcd0da) Remove JRuby from allow_failures - [`d45c2d4`](https://github.com/haml/haml/commit/d45c2d44b6b993ae7d54634948d69c2951d6dda3) Add backslash for @ to support JRuby - [`8f20707`](https://github.com/haml/haml/commit/8f207073c2e0e2bc296f18424b3fec3dfe659674) Enable frozen_string_literal pragma if possible - [`a6bb255`](https://github.com/haml/haml/commit/a6bb25529a5df92b355f8e4b2a712c2aa3ff1b26) Oops, this was not intentional... - [`aa4c397`](https://github.com/haml/haml/commit/aa4c397410312ab3c3ee6191110f5e595e5eea00) Fix spec in [#867](https://github-redirect.dependabot.com/haml/haml/issues/867) for pretty mode removal - [`11af795`](https://github.com/haml/haml/commit/11af7954f3e9ba5e21924c11c49773cacc18eeb2) Fallback to default value of preserve option - [`bbbeb7e`](https://github.com/haml/haml/commit/bbbeb7ea8ade64fec20de4e0254040a229bdda0e) Update CHANGELOG to include [#867](https://github-redirect.dependabot.com/haml/haml/issues/867) - [`ed7f24f`](https://github.com/haml/haml/commit/ed7f24f1dc63c38f3d143289262266cbf59a9f1f) Merge pull request [#867](https://github-redirect.dependabot.com/haml/haml/issues/867) from redoPop/atful-css - Additional commits viewable in [compare view](https://github.com/haml/haml/compare/4.0.7...v5.0.0)

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ruby / TryRuby

Bump haml from 4.0.7 to 5.0.0 #52