Limit feed to 10 posts

[benbalter]

An attempt to fix #40, or at least start the conversation, by limiting feeds to 10 posts.

Fixes #40.

[parkr]

someone is going to want to make this configurable... but 10 seems reasonable to me. my feed reader will be able to hold onto old entries anyway so the latest 10 should suffice

[benbalter]

A lot of @pathawks's arguments over in #40 were persuasive to me, but think it's easier to add an option than to remove one. If our experience parallels WordPress's, and 99% of users are fine with a hard limit of 10 posts, I think that's more than enough of a core user case for me to say lets leave it out.

That said, if someone submits a pull request to make in an option with a reason other than "it should be an option", I don't know that we need to be dogmatic here.

Thanks for the 💭 @parkr. Going to give this a spin in the wild, and see what type of feedback we get from users, one way or the other.

[pathawks]

it's easier to add an option than to remove one.

👍