Usage:
------
Try an example, in the test directory:

$ ./Jffs2DParser jffs2dump3 -f
/************************************/
 JFFS2 dump parser configuration :
 - Parsing jffs2dump3
 - Filemap mode
 - Flash page size : 2048
 - Pages per block : 64
 - Partition offset : 7864320
/************************************/
Processing file 1/3: 
Processing file 2/3: 
Processing file 3/3: 
1009961311
FileSet with 3 files :
  F: "slash"
  F: "test2.dat" [DELETED], size: 0 ino:3, size:0, pino:1
    Data nodes versions : 54
    Valid data node versions : 0
    Concerned flash pages indexes (0) : 
    Fragmentation factor : -nan
    Contiguous factor : -0

  F: "test.dat", size: 25600 ino:2, size:25600, pino:1
    Data nodes versions : 51
    Valid data node versions : 8
    Concerned flash pages indexes (21) : 
    Fragmentation factor : 1.4
    Contiguous factor : 0.35
Seq. read cost : 
  readpage[0] = 3
  readpage[1] = 3
  readpage[2] = 3
  readpage[3] = 3
  readpage[4] = 3
  readpage[5] = 3
  readpage[6] = 3