Update for 5.1.6

diff --git a/SALOME_5_1_5_Release_Notes.pdf b/SALOME_5_1_5_Release_Notes.pdf
deleted file mode 100755 (executable)
index 0ff0891..0000000
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diff --git a/SALOME_5_1_6_Release_Notes.pdf b/SALOME_5_1_6_Release_Notes.pdf
new file mode 100755 (executable)
index 0000000..a7d3a64
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