Support for Jekyll blog sites

[Qoyyuum]

Would love to use this for my Jekyll blog. Just need to implement the other issues:

• TODO: "Settings" to be implemented #2 To set a default output directory for export.
• TODO: self.menu.addItem("Export to Markdown") #5 Since Jekyll supports Markdown

[manipuladordedados]

The pdiary editor is pretty basic and as each CMS or something uses different syntaxes for certain things I can't create something specific just for one, the most I can do is generate a very basic markdown file that the user can edit later.