Parameterized Observables.Group
Modified way that executions are managed in order to fix problem with Executions lists getting out of sync. Only ExecutionManagerImpl now holds original information about Executions, which is then passed on to all other places.
LOADUI-413 fixed wizards being closed due to changes in confirmationDialog, this led to a problem with the ConfirmationDialogs not being closed properly. This was also fixed later on
Cleanup of corner-cases in SettingsTab
LOADUI-382 fixed eventhandling not taking wrong events
LOADUI-382 added dialog to show when trying to open another test run
while another one is running, also moved some execution opening logic to
StatisticView
some menu styling
Merge branch 'sprint13' into bug-execution-openable
Filepicker added to components that are using it.
Merge branch 'sprint13' into bug-execution-openable
LOADUI-381 Re-ordered menu-items. Added menuItemSeparators. Changed MenuItemsProvider to provide new menuItems every time it is asked due to bug with separators not showing up on context menu. Styled menuItem separators.
Merge branch 'sprint13' into next

Conflicts:
	loadui-project/loadui-fx-interface/src/main/java/com/eviware/loadui/ui/fx/MenuItemsProvider.java
	loadui-project/loadui-fx-interface/src/main/java/com/eviware/loadui/ui/fx/views/analysis/linechart/SegmentView.java
	loadui-project/loadui-fx-interface/src/main/java/com/eviware/loadui/ui/fx/views/eventlog/EventLogInspector.java