Denser production logs with lograge

Turns this:
```
2013-11-19T21:30:37.121105+00:00 app[web.3]: Started GET "/soylent-free-your-body" for 12.239.54.2 at 2013-11-19 21:30:37 +0000
2013-11-19T21:30:37.126286+00:00 app[web.3]: Processing by CampaignsController#home as HTML
2013-11-19T21:30:37.126286+00:00 app[web.3]:   Parameters: {"id"=>"soylent-free-your-body"}
2013-11-19T21:30:37.152057+00:00 app[web.3]:   Rendered shared/_share_buttons.html.erb (0.4ms)
2013-11-19T21:30:38.112948+00:00 app[web.3]:   Rendered theme/views/campaign.html.erb within layouts/application (976.1ms)
2013-11-19T21:30:38.115430+00:00 app[web.3]:   Rendered layouts/_mobile_bookmark_metas.html.erb (0.3ms)
2013-11-19T21:30:38.114795+00:00 app[web.3]:   Rendered layouts/_facebook_metas.html.erb (1.4ms)
2013-11-19T21:30:38.176866+00:00 app[web.3]:   Rendered layouts/_navbar.html.erb (0.4ms)
2013-11-19T21:30:38.175872+00:00 app[web.3]:   Rendered layouts/_google_analytics.html.erb (0.1ms)
2013-11-19T21:30:38.176224+00:00 app[web.3]:   Rendered layouts/_social_js.html.erb (0.0ms)
2013-11-19T21:30:38.293091+00:00 app[web.3]:   Rendered theme/views/_header.html.erb (3.7ms)
2013-11-19T21:30:38.294146+00:00 app[web.3]:   Rendered theme/views/_footer.html.erb (0.1ms)
2013-11-19T21:30:38.294645+00:00 app[web.3]: Completed 200 OK in 1168ms (Views: 946.7ms | ActiveRecord: 218.8ms)
```

into this:
```
2013-11-19T21:31:27.898453+00:00 app[web.2]: method=GET path=/light-wing-trainer-gray format=html controller=campaigns action=home status=200 duration=53.27 view=26.79 db=22.64 params={"id"=>"light-wing-trainer-gray"}
```