ESTEL:TODO v5p7

= ESTEL-3D =
 * Particle tracking (test cases do not work so far)
 * Particle tracking output (ASCII and binary)
 * Mass lumping flow computation
 * Mass-lumping test case
 * Make i2char crash smartly if integer does not fit format
 * Use i2char and r2char everywhere in ASCII output
 * Agree on formats for ASCII output: i12 and es20.12: is that ok???
 * Re-integrate coupling (10%)
 * Changes in TELEMAC-2D => send to JMH
 * Finish parallelism
 * Changes in BIEF=> send to JMH
 * Changes in PARALLEL => send to JMH
 * Changes in PARAVOID => send to JMH
 * Check CROUT preconditioning
 * Test ASCII output on BlueGene
 * Finish user manual (50%)

= ESTEL-2D =
 * Finir user manual (30%)