Support bootstrap4

[44uk]

Add class for fragment and bootstrap4 style.

[44uk]

Failing Travis CI by Rails 4.x on Ruby 1.9.3, what should I do for all green?

[MrShemek]

+1

[h6ah4i]

+1

I also need this feature for spectre.css. It has the same syntax with Bootstrap 4.

<ul class="breadcrumb">
  <li class="breadcrumb-item">
    <a href="#">
      Home
    </a>
  </li>
  <li class="breadcrumb-item">
    <a href="#">
      Profile
    </a>
  </li>
  <li class="breadcrumb-item">
    Change avatar
  </li>
</ul>

ref.) https://picturepan2.github.io/spectre/components.html#navigation

[44uk]

What we really need may be supporting fragment class.

[czj]

Hi!

@WilHall as Ruby 2.0 support has ended we should probably remove it from Travis CI. Could you please do that so @44uk 's tests can pass ?

@WilHall could you please merge it afterwards ? We love Gretel and being able to upgrade to Bootstrap 4 beta 1 with it would be appreciated 👍

[44uk]

bootstrap v4.0.0-beta had been released. but no need to change.
https://getbootstrap.com/docs/4.0/components/breadcrumb/

[mkasztelnik]

@44uk since this repo is not maintained anymore can you submit this PR into https://github.com/WilHall/gretel (soon-to-be) active fork?

[44uk]

@mkasztelnik Thank you for the advice. I'll check updated bootstrap(Currently v4.1.3 released) and do PR to the fork.

[czj]

@mkasztelnik thank you for your work.

Will https://github.com/WilHall/gretel be the repo from which the gem is built from now on ?

[MrShemek]

@czj yes, together with @WilHall we are going to maintain the gem again.

[czj]

Awesome @MrShemek :-) We'll gladly help if we can @levups