Tobias Hunger authored Jan 11, 2017 and Tim Jenssen committed Jan 16, 2017

Pass the complete kit to QmlDumpTool::pathAndEnvironment instead
of just the Qt Version. That removes the need to guess at the toolchain
used and makes sure we have a better environment set up.

This also removes the need for BaseQtVersion::qmlToolsEnvironment() which
played the toolchain guessing game.

Change-Id: I4f4b9bb14b3ceb3892652901b459b53fcc4cb1ac
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>