change the renamed file handling tunable to be false by default
fix the warning
remove too generic MAGICS from Java and Scala analyzers
fixes #782
fix clear history usage and naming
Merge pull request #785 from vladak/analyzer_magics

remove too generic MAGICS from Java and Scala analyzers
Merge pull request #784 from vladak/removed_tunable_flip

change the renamed file handling tunable to be false by default