UI Tests - Extend 'DownloadServerTest'

Current available test - https://github.com/jbosstools/jbosstools-fuse/blob/master/uitests/tests/org.jboss.tools.fuse.ui.bot.tests/src/org/jboss/tools/fuse/ui/bot/tests/DownloadServerTest.java

The current scenario is checking only one runtime Karaf 3.0.3. It would be nice to

1. convert this into parametrised UI test
2. update version of tested servers to latest versions
3. add servers as Fuse on Karaf (Red Hat Fuse 7+ Server and Red Hat JBoss Fuse 6.x Server), Fuse on EAP (Red Hat JBoss Enterprise Application Platform X.x), Karaf (Karaf X.X Server)

DoD:

• UI test is parametrised
• server can be started
• version of each is correct

Example of parametrized UI test - e.g. https://github.com/jbosstools/jbosstools-fuse/blob/master/uitests/tests/org.jboss.tools.fuse.ui.bot.tests/src/org/jboss/tools/fuse/ui/bot/tests/CamelEditorDataFormatTest.java
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Known issue

• https://issues.jboss.org/browse/FUSETOOLS-1383