Fixes

• Fix: solved incompatibility with Markdown Preview plugin (fixes #119)
• Fix: multiple metadata headers now supported (thanks @xdutaotao)
• Fix: long CSS for body now properly supported (fixes #128)
• Fix: url/filepath detection fixed for Windows (fixes #137, thanks @358463121)
• Open note: accept links as note_guid and offer options to load from clipboard/prompt (see wiki)
• Insert Note Link: now accepts template and to arguments