Migrate to new AnaAlgorithms?

[kratsg]

https://atlassoftwaredocs.web.cern.ch/AnalysisTools/ana_alg_migrate_el/

[jbossios]

For me, it would beneficial to be able to run on Athena. Although, I guess this will mean all xAH-based algorithms not living on xAH will also need to be updated.

[kratsg]

@jbossios xAH can configure algorithms of both old/new styles equivalently. This is just converting the algorithms inside xAH to AnaAlgorithm. Not going to affect other people. And nominally should see 0 difference.

[jbossios]

Then it would be awesome to do the migration. I hope we hear from others benefiting from this.

[kratsg]

The only thing I might need some help with is to figure out the re-ordering of some of the algorithms. I know there are subtle changes that break existing logic in our code because we assume initialize/fileExecute are in some order -- but I know one of those options gets dropped... but...