JFG-620 Create backend for tags
Merge branch 'JFG-620' into JFG-579

Conflicts:
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/SessionDataService.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/SessionDataServiceAsync.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/components/SessionComparisonPanel.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/components/TagBox.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/data/WebClientProperties.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/server/SessionDataServiceImpl.java
JFG-579 Improve filter bar for a search by tags
Merge https://github.com/griddynamics/jagger into JFG-579

Conflicts:
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/components/SessionComparisonPanel.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/trends/Trends.java
	webclient/src/main/webapp/WEB-INF/gwt-servlet.xml
- monitoring params are now grouped according to rules
- old hyperlinks are processed correctly
JFG-579 Search by tags
Merge https://github.com/griddynamics/jagger into JFG-579

Conflicts:
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/SessionDataService.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/SessionDataServiceAsync.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/components/SessionComparisonPanel.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/components/TagBox.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/server/SessionDataServiceImpl.java
Merge https://github.com/griddynamics/jagger into JFG-579

Conflicts:
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/SessionDataService.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/SessionDataServiceAsync.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/components/SessionComparisonPanel.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/components/TagBox.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/server/SessionDataServiceImpl.java
+ hot-fix CustomMetricSummaryFetcher
+ bug with SessionComparisonPanel with testInfo
Merge pull request #435 from amikryukov/hot-fix-custom-metric-summary

Hot fix CustomMetricSummaryFetcher + merge bug ?
+ fetch plot data with batches for Throughput, Latency, TimeLatencyPercentile, CustomMetrics
   monitoring still the same
JFG-579
Merge branch 'JFG-579_TEMP' into JFG-579

Conflicts:
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/SessionDataService.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/SessionDataServiceAsync.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/components/SessionComparisonPanel.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/client/components/TagBox.java
	webclient/src/main/java/com/griddynamics/jagger/webclient/server/SessionDataServiceImpl.java
JFG-579 new search tab panel
JFG-579 microchange
- fixed bug with repeating lines for monitored parameters when many sessions selected
- temporary disabled session scope plots
merge with master
merge with kgribov/Epic
- fix 2 bug in code for test group metrics
- old monitoring and new monitoring as metrics are correctly combined in UI