Fixed AMP test for 'static pages'
Fixed AMP test for 'static pages'

no issue

- 'static pages' (post of a page type) were not supported in v0.1 API
- this is where the 404 is comming from  - https://github.com/TryGhost/Ghost/blob/df7e64fafa122ec5d461c4772eca86d21938046b/core/frontend/apps/amp/lib/router.js#L66. and it was handled in rather late stage before - https://github.com/TryGhost/Ghost/blob/df7e64fafa122ec5d461c4772eca86d21938046b/core/frontend/apps/amp/lib/router.js#L24
- after moveing to v2 API the later stage doesn't happen so the entry lookup helper doesn't have anough infomration to tell if it's a 'Post' or 'Page' is being requested

ErisDS/Ghost,e10/Ghost,ErisDS/Ghost,bitjson/Ghost,JohnONolan/Ghost,JohnONolan/Ghost,janvt/Ghost,janvt/Ghost,e10/Ghost,kevinansfield/Ghost,kevinansfield/Ghost,TryGhost/Ghost,Kikobeats/Ghost,bitjson/Ghost,Kikobeats/Ghost,kevinansfield/Ghost,TryGhost/Ghost,Kikobeats/Ghost,JohnONolan/Ghost,ErisDS/Ghost,TryGhost/Ghost