Support for Jekyll and Letterpress

[aniketpant]

I am planning to add support for Jekyll and Letterpress blogs.

Will implement it the way DayOne journals are taken care of.

Any suggestions of any kind?

[aniketpant]

An import function for Jekyll has been written and is waiting to be merged — jekyll/jekyll-import/pull/51

@maebert Since your vision for jrnl is to keep it slim, I'm closing this issue.
If someone needs to integrate jrnl with another tool, they can write a wrapper code for the same.

[maebert]

Hey Aniketpant, thanks for doing this! I think with that, and export to individual files, we'll cover a lot of interfacing with other tools!