fix thread-safety of hessian invoker
JFG-358 Bad report when target service is unavailable
guaranty that only one instance of hessian proxy is created per URL
Add an ability to use direct links
Some cosmetic changes of metric panel
Add an ability to use Firefox browser
Some sql performance changes
Refactored providers
Added StringCreator
Fixed distribution (not included providers)
Added AbstractIterator
fix JFG-374
Apache Http Invoker: 'Path' could be passed in query
Show empty node when no one test is selected
Improve sql performance for metric fetch
Fix misprint
Add test order by time
Fix too much error messages, while registering agents
Improve workloadTaskData fetch
Change name of default nodes
revert clocks toString method
comparison issue
Merge pull request #173 from amikryukov/issueJFG-366

JFG-366 revert clocks toString method