+ add hashCode field to TaskDataDto.
+ bug-fix if 2 sessions checked with and without monitoring.
+ add multiplication with odd number in hash generation
+ rename hashCode field into uniqueId
+ rename and refactor generateHash method
Merge branch 'master' of github.com:griddynamics/jagger into matched-tests

Conflicts:
	webclient/src/main/java/com/griddynamics/jagger/webclient/server/ControlTreeCreatorServiceImpl.java
Merge pull request #446 from amikryukov/matched-tests

JFG-518 tests to be displayed if selected sessions > 1. (problem with identical name)