adding format param to front endpoints
article .json endpoints
more-stories .json endpoints
core nav .json
gallery .json
section and video .json format
football .json tests
move event over to .json
discussion formats
move routes into dev-build
more specific about .json route, removed format param
bits n bobs
no longer a method
unnecessary default
Merge pull request #1001 from guardian/json-format-endpoints

.json format endpoints
Merge branch 'master' into swimlane-merge

Conflicts:
	gallery/conf/routes
	gallery/test/GalleryControllerTest.scala
	section/conf/routes
	section/test/SectionControllerTest.scala
	section/test/SectionsControllerTest.scala
	section/test/TagControllerTest.scala
	video/conf/routes
	video/test/VideoControllerTest.scala