running without -H causes "warning" message about history based reindex

[vladak]

By default the history is off however history based reindex is on (on global level, i.e. in Configuration) so when the indexer runs it will emit a message about the discrepancy:

INFO: History based reindex is on, however history is off. History has to be enabled for history based reindex.

There should be better way to handle this.

[vladak]

One idea would be to disable the global history based reindex if global history is off, however that would thwart per project override if the project is partially filled (i.e. missing the historyBasedReindex project property). It might make sense to move this sort of check to project level and perform it in the first phase of indexing or perhaps in Project#completeWithDefaults(), however that would spam the log with warning messages, one for each such project.