Github plugin: Always set the `per_page` parameter
Github plugin: Always set the `per_page` parameter

We should always send the `per_page` parameter since it's always set
anyway.

jiusanzhou/dillinger,joemccann/dillinger,benjamin-albert/dillinger,joemccann/dillinger,jiusanzhou/dillinger,benjamin-albert/dillinger,jiusanzhou/dillinger,joemccann/dillinger