Elektra: merging Directory Reference

Elektra 0.8.24

merging Directory Reference

## Files
file | automergeconfiguration.cpp
file | automergestrategy.cpp
| Implementation of AutoMergeStrategy.
file | importmergeconfiguration.cpp
file | interactivemergestrategy.cpp
| Implementation of InteractiveMergeStrategy.
file | mergeconflictstrategy.cpp
| Implementation of MergeConflictStrategy.
file | mergeresult.cpp
| Implementation of MergeResult.
file | mergingkdb.cpp
| Implementation of MergeResult.
file | metamergestrategy.cpp
| Implementation of MetaMergeStrategy.
file | newkeystrategy.cpp
| Implementation of OneSideStrategy.
file | onesidemergeconfiguration.cpp
file | onesidestrategy.cpp
| Implementation of OneSideStrategy.
file | onesidevaluestrategy.cpp
| Implementation of OneSideStrategy.
file | overwritemergeconfiguration.cpp
file | threewaymerge.cpp
| Implementation of ThreeWayMerge.