[-] MO: ganalytics: product impression missing

product impressions only displayed in homepage, missing everywhere else (category, search results, manufacturer products, prices-drop,new products, best sellers.....)
We should also add it to the blocklayered module, but there is no hook for that.
[-] MO: ganalytics: screwing with bounce rate

Some automatic events (product page detail view) are being recorded as user interactions so the bounce rate was totally screwed up
avoid impressions sent twice in homepage

after the first commit, impressions and click events sent twice in home page
this commit fixes that
order confirmation double pageview

orderconfirmation pageview is being sent from GoogleAnalytics action view, this perevent to be sent again from footer
wrong pullrequest in previous commut
save 1 sql query

save 1 sql query by checking controller name instead of hook executed
Merge branch 'patch-7' of https://github.com/kermes/ganalytics into kermes-patch-7

Conflicts:
	ganalytics.php
Merge branch 'kermes-patch-7' into dev (PR #15)
Merge branch 'patch-9' of https://github.com/kermes/ganalytics into kermes-patch-9
Merge branch 'kermes-patch-9' into dev (PR #18)