document detailed bulk ingest best practices
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                 Key: ACCUMULO-121
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-121
             Project: Accumulo
          Issue Type: Improvement
          Components: docs
    Affects Versions: 1.5.0
            Reporter: Eric Newton
            Assignee: Adam Fuchs


The users' manual should advise best practices for generating and importing 
bulk files, as well as the effects of bulk imported files:  

 1. Recommended file sizes
 1. Side effects of bypassing constraints
 1. Proper use of range partitioners
 1. Preemptive splitting of tables
 1. How major compaction/garbage collection affects bulk files
 1. Setting the timestamp
 1. Invalid visibility fields makes accumulo fail in strange ways
 1. Bulk import doesn't increase entry counts on the monitor page until the 
files are compacted

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