Smooth transition for tooltip above the graphs

Like highcharts does it
Merge pull request #396 from just-boris/master

Smooth transition for tooltip above the graphs
Merge pull request #392 from braimanm/master

Changes for #390 Broken TestNG several tests report
add log4j properties to allure-model (fixes #399)
Merge pull request #400 from baev/master

Add log4j properties to allure-model (fixes #399)
[maven-release-plugin] prepare release allure-core-1.4.2
[maven-release-plugin] prepare for next development iteration
Fix for #323 Problem with Features and Stories

Replacing assertTrue with assertThat hasItems