[-] MO: ganalytics: missing one page checkout

onepage checkount not being recorded (controller orderopc)
[-] MO: ganalytics: add upgrade procedure

Needed to hook the module to the new hook, otherwise no page views
Remove mixed content error
Merge branch 'patch-2' of https://github.com/kermes/ganalytics into kermes-patch-2
Merge branch 'kermes-patch-2' (PR #6)
Merge branch 'patch-2' of https://github.com/cedricfontaine/ganalytics into cedricfontaine-patch-2
Merge branch 'cedricfontaine-patch-2' (PR #16)
Change upgrade file for v2.0.4