Fix #368: Enum.concat had wrong clone implementation
Fix #367: Add Set.find operation to match stdlib
Reformat all source code in src/ using ocp-indent; whitespace only changes
Fix bug in set.find order
Expose BatSet.find, add tests
BatText: add test for explode and implode
Fix list order in BatText.explode

The list of characters was output in reversed order.
fix BatFloat.round corner case on predecessor of 0.5
BatBitSet: Fix last element access
Merge pull request #369 from zakki/master

Fix batBitSet