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 Analyse program "mergedb" 
 Purpose : Merges two DD DBs into one
 Usage   :  [-mindb R -dbp I -batch -h -?] DBold DBnew 
Where new records in DBnew are written to DBold
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 Options : 
 -mindb R : A DB entry is not written if it is closer 
            than R to any entries in DBold. Default R = 0.200
 -dbp   I : Change definition of distance.
            I=1 Use RMSD 
            I=2 Use maximum atom difference (Default) 
 -batch  : Batch mode - no output to the screen 
 -h      : Print this help text. 
 -?      : Print this help text. 
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