Install php-pecl-yaml ext for PHP 7

[ryzy]

Be aware of that issue: #6
Can be installed once we sure it's resolved.

[dimaip]

This is the file that was giving me segfaults:

blah: &alohaPlain
  placeholder: 'Text is here'
  format:
    b: FALSE
'Sfi.Sfi:PagePresentation':
  superTypes:
    'Sfi.Sfi:AbstractPage': true
  properties:
    lead:
      type: string
      ui:
        aloha:
          <<: *alohaRich
          placeholder: Лид

Full file: https://github.com/sfi-ru/SfiDistr/blob/master/Packages/Sites/Sfi.Sfi/Configuration/NodeTypes.Pages.yaml

[pozgo]

Is this still an issue? Im currently updating tthe image to more recent versions of php so might as well add this packege

[dimaip]

I'm personally no longer using this image

[pozgo]

noted @dimaip
Thanks for the update!