Google revealed the change of status in a blog post, in which they also discussed eight other improvements to the social site. The search company says that over the past 90 days in which Google+ has been in field trials, they’ve made 100 improvements, including the nine unveiled in the post. Interestingly, they put the status change at the end of the post. So what other features did Google add to Google+ that might be of interest? They made some serious improvements to Hangouts. Google+ members have used this video conferencing capability in a number of innovative ways, from cooking classes t…