Merge branch 'task/extend-markdown-support_milestone-displaying' into task/extend-markdown-support_markdown-clicks

# Conflicts:
#	app/src/main/java/ru/terrakok/gitlabclient/presentation/markdown/MarkdownPresenter.kt
#	app/src/main/java/ru/terrakok/gitlabclient/toothpick/provider/MarkDownConverterProvider.kt
#	app/src/main/java/ru/terrakok/gitlabclient/ui/global/markdown/MarkdownTextView.kt
#	markwonx/src/main/java/ru/terrakok/gitlabclient/markwonx/label/LabelVisitor.kt
#	markwonx/src/main/java/ru/terrakok/gitlabclient/markwonx/milestone/MilestoneVisitor.kt