* support extended statistics

* handle different response format for extended statistics

fix(logging): added extra logging when default config file is not found (ie homepath is not correct), fixes #6829

fix(rendering): minor fix for server side rendering when using non default http addr setting and non default domain setting, #6813

Phantomjs is always rendering login page because domain is not considered. According to http://phantomjs.org/api/webpage/method/add-cookie.html a correct domain must be passed. Probably this change is now necessary due to https://github.com/grafana/grafana/issues/6660

closes #6822

closes #6822

close #6807

Use space to separate multiple modes

close #6807

ref #6784