Fix an issue where Phame could post to the wrong blog

When you getInt() an array, PHP decides the array has value 1. This would
cause us to post to blog #1 incorrectly. I didn't catch this locally because
I happened to be posting to blog #1.

Stop us from interpreting array values as 1, and fix blog interpretation.

This approach is a little messy (projects has the same issue) but I'll see
if I can clean it up in some future change.

Auditors: chad