Merge pull request #61 from DieterDePaepe/master

Fix typos and errors in documentation.
TSP: use longs consistently for distance to avoid overflow (fix regression during City to Location refactor)
AnchorShadowVariable
docs: AnchorShadowVariable + fix trend
AnchorVariableListenerTest
PLANNER-281 Score configuration should allow combining <scoreDrl> with <scoreDrlFile>
Remove eval() usage from DRL
scoreTradeoffInPerspective
scoreTradeoffInPerspective show in docs