adding adaptative dt in the predictor-corrector scheme
note.
Merge remote-tracking branch 'origin/master'
Adding printing of the git commit revision number at runtime
VersionInfo.h is used to write git version in export files.
Merge remote-tracking branch 'origin/master'
- Fixed a bug to compose `string_control_parameters'
- Calculating max velocity only in predictor.
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Update Note
Fixed bug in simulation name

endl was part of the simu name string for stress controlled simulations.
Fixed a trivial bug of including new-line character in filenames.
Merge remote-tracking branch 'origin/master'
- unscaled spring constant (unfinished)
- output constant time interval if pre simulation results are given.
fixed bugs.
Correct a mistake to stop simulation for negative shear rate.
Minor corrections.
Boolean "unscaled_contactmodel" and spring constants for unscaled contact model simulation can be given from parameter file.
Fixed bug, confusion about area fraction and volume fraction.
It affected only values of output data slightly.
Changed to handle negative shear rate.
Minor change