Increased timeout for Eclipse tests. Fixed default settings.

Our root pom's tycho-surefire-plugin contained unnecessary
timeout configuration. It's better to rely on sure.timeout
and the tycho surefire plugin inherits that.
Eclipse tests have custom timeout of 3000 sec - the default
2400 was not enough on Mac (and Windows was getting close).
implicit waits in constructor added,
removed not needed workbench exceptions