bug fix JFG-602
+ reduce many calls for database
+ fetch control tree data via several treads
+ delete '(temp string)'
Merge branch 'master' of github.com:griddynamics/jagger into ui-bug-fix
+ one thread pool for creating control tree
+ forbid control after link processing, while plots loading
+ greate improvement of database calls
+ add logs to see time of database calls
+ link compatibility with 1.2.2
+ control tree expanded chosen tests/metricson link load
+ let spring handle executorService.shutdown() method
+ bug fix - old schema
+ add exact invocations test into old schema smoke tests
Merge pull request #384 from amikryukov/ui-bug-fix

WEB UI bug fix JFG-602
Merge pull request #385 from amikryukov/period-bug-fix

Periodic load fix
[maven-release-plugin] prepare release parent-1.2.4-m1
[maven-release-plugin] prepare for next development iteration
Merge pull request #390 from griddynamics/1.2.3WebUiPerfomance

1.2.3 web ui perfomance MERGE PULL REQUEST
Merge pull request #388 from kgribov/SutJVMversion

Fix NPE in DatabaseValidator
Merge branch 'master' of https://github.com/griddynamics/jagger into ListenersInvoke