Rebake All Posts Optimization

[RGJ (Richard - Communiteq)]

@Ghan

The field is an integer but is it necessary to reset it for all posts before we do any rebake operation? As I said, this single call takes hours to run because of the size of our post table. I have slightly modified the rebake code to instead make this call for each post right before the rebake is called. Is there a better way?

You can just issue a post.rebake! for every post that needs a rebake.
No need to mess with baked_version.