issue 176:
1. using $ as global var
2. putting shared methods in content_server/globals.rb
3. creating new ThreadSafeHashMonitored class to make monitoring process vars more elegant
issue 176
1. shared monitoring of general vars (total objects and string count) in globlas.rb
2. removed unnecessary process vars such as dynamic content data, add\rem objects
3. put monitoring of process ars queues in places of push\pop and removed from general code
fixes of code review
fixes of code review
Merge pull request #189 from bbfsdev/issue_176

Issue 176