Added redirect to the backend when ?edit query param is present.
VP-129 Conversion to absolute paths in Overview criteria
Merge pull request #51 from dlu-gs/hotfix/vp-129-sym-ref-in-overview

VP-129 Conversion to absolute paths in Overview criteria
VP-39 Vivo\Util\MIME refactoring.
Merge branch 'develop' into feature/VP-141
Merge branch 'feature/VP-83' into feature/VP-141

Conflicts:
	src/Vivo/CMS/FrontController.php
VP-163 \Vivo\CMS\UI\AbstractForm properly passes its properties to the
view model
Merge pull request #55 from dlu-gs/hotfix/vp-163-abstract-form-view

VP-163 \Vivo\CMS\UI\AbstractForm properly passes its properties to the
VP-160 Support for <li> class in Navigation
Merge pull request #56 from dlu-gs/feature/vp-160-navigation-attribs

VP-160 Support for <li> class in Navigation
VP-171 AllEmpty condition + VivoInvalid validator
Merge pull request #58 from dlu-gs/feature/vp-171-all-empty-condition

VP-171 AllEmpty condition + VivoInvalid validator
VP-171 'At least' groups implemented in VivoInputFilter
Merge pull request #59 from dlu-gs/feature/vp-171-all-empty-condition

VP-171 'At least' groups implemented in VivoInputFilter
VP-174 Document 'published' property editable in BE
Merge pull request #60 from dlu-gs/hotfix/vp-174-doc-published-property

VP-174 Document 'published' property editable in BE
Editor must be instance of EditorInterface; fix Backend\ConfigException in Editor\Content
Deletion bad ConfigException
VP-175 OverviewTitle and RenderDocument viewhelpers - namespace clashes
Merge pull request #62 from dlu-gs/hotfix/vp-175-overview-namespace-clashes

VP-175 OverviewTitle and RenderDocument viewhelpers - namespace clashes