Introduce chart database Version 018, to include ChartFamily support.
Revert "Merge pull request #102 from mariokonrad/upstream-tinyxml"

This reverts commit 27b4d4c081e5035af12fc0b82898722dc4c28d0e, reversing
changes made to 3381e7a2805965ee8a26a09ed6e8103ec28df82e.