remove unused imports
Merge pull request #208 from baev/1.3.7

add allure version
[maven-release-plugin] prepare release allure-core-1.3.7
[maven-release-plugin] prepare for next development iteration
add - log exceptions to failed test-suite (model and junit listener changes)
add - provide info about test-suite's failure (data changes)
add - view of broken test suites in face module
fix - react on filter buttons for failed and broken suites in suite list
rft - dont use ng-class for stacktrace btns