v1.1.0

• Enh: added possibility to add custom counter;
• Enh: added possibility to add turbo:topic and turbo:source attributes for Item;
• Enh: added Content helper with next methods: header, img, gallery, share, button, comments;
• Dep: TurboContentHeader marked as deprecated. Should used Content::header instead;
• Ref: refactored Channel and Item methods for best cyclomatic complexity value;
• Enh: added possibility to add yandex:full-text for compatibility with Yandex News;