Update number of documents to skip when editing sparsity

Previously the command was called only when using the buttons.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r-temis@525 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Update French translation

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r-temis@526 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Fix spinbox validation

Without ... calls which did not specify fun were failing,
likely because Tk passed another argument in this position.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r-temis@527 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Fix choosing number of CA documents/terms to plot

Without the explicit conversion, the second value is converted
to a string. Sometimes all terms would be plotted instead of
the chosen number.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r-temis@528 edb9625f-4e0d-4859-8d74-9fd3b1da38cb