Remove SiteMeter.

Conflicts:
        provisioning/cookbooks/lesswrong/templates/default/development.ini.erb
        r2/example.ini

[#61364156]
Remove SiteMeter.

Conflicts:

	provisioning/cookbooks/lesswrong/templates/default/development.ini.erb
	r2/example.ini

[#61364156]
Merge branch 'master' into staging

Conflicts:
	r2/example.ini
Merge branch 'master' into staging
Merge branch 'master' into staging
Merge branch 'master' into staging
Merge branch 'staging' into stable

Conflicts:
	r2/example.ini
Merge branch 'master' into staging
Merge branch 'staging' into stable
Merge branch 'master' into staging
Merge branch 'staging' into stable
Merge branch 'master' into staging
Merge branch 'staging' into stable
Merge branch 'master' into staging
Merge branch 'master' into staging
Merge branch 'master' into staging
Merge branch 'staging' into stable
Merge branch 'master' into staging
Add visual website optimiser
Merge branch 'master' into staging