Test page skins are ignored in PROD

Look at them in CODE instead.
Merge remote-tracking branch 'origin/master' into testPageskinsInCode

Conflicts:
	common/app/dfp/DfpAgent.scala
	common/app/dfp/DfpData.scala
	common/test/dfp/DfpAgentTest.scala
Updated test data
Merge remote-tracking branch 'origin/master' into testPageskinsInCode
Fixing the build
Merge pull request #5204 from guardian/testPageskinsInCode

Test pageskins in code