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* .data files are renamed to .vidjil
* by default output filenames have the same basename as the input file

Documentation and tests have been updated accordingly

Extracts the basename of a path. There is a basename() function in C but takes char *
(not even const char*), which is not convenient with string in C++.
And basename() doesn't remove extension.

Unit tests added.

-display only most recent results_file
-use only most recent result file for fuse

This was hardcoded twice in the code.

This feature was not documented and not used.
The browser offers better normalization features.

Bash automatically strips backslashes. So we need them to be escaped to ensure that one \ will
still be present.

analysis file data field must replace or complete the original data field ???

data list is just after the clone list

Fixed thanks to Valgrind.

This may help the upcoming modularization of vidjil.cpp

(Soissons)

This allows to remove any representative computation or fine segmenation with '-y 0' or '-z 0'.
Moreover, '-A' debug option now properly sets these two values.

Moreover, the argument 's' was not used