Fix smtp line length limit issues by implementing html body parsing?

[maxweisel]

Hey Einar,

I've been a big fan of MyLife for some time now. My only gripe is that long lines of text seem to get chopped with a newline when I send an email from my iPhone. I started digging into it and it seems to be a limitation with plain text and smtp? I'd love to contribute back and add html body parsing support. I'm not trying to do anything fancy other than use it as a work around for the smtp line length limit. Do you have any strong opinions about how it should be implemented? Is this something you've thought about doing before? I'd love to open a PR that doesn't require a lot of work on your end to merge.

Max