add delete options for controlling file deletion
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                 Key: COUCHDB-1137
                 URL: https://issues.apache.org/jira/browse/COUCHDB-1137
             Project: CouchDB
          Issue Type: Improvement
          Components: Database Core
    Affects Versions: 1.0.2
            Reporter: Randall Leeds
            Priority: Minor


Even after switching to an extents-based filesystem I've noticed that deleting 
files after compaction can sometimes be terribly painful and slow. 
Additionally, deleting large pre-compact database and view files places extra 
load on the server that may be best kept to off hours. These sorts of large 
databases might be impossible to run a complete compact cycle on in short time. 
I'm suggesting we add an option to allow couch to leave files to be deleted in 
the .delete directories so administrators can delete them at their leisure 
(presumably at off hours or with a tool like ionice).

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