ADDED   logos/ibbt,logo.pdf
Index: logos/ibbt,logo.pdf
==================================================================
--- logos/ibbt,logo.pdf
+++ logos/ibbt,logo.pdf
cannot compute difference between binary files

DELETED logos/ibbt,logo.png
Index: logos/ibbt,logo.png
==================================================================
--- logos/ibbt,logo.png
+++ logos/ibbt,logo.png
cannot compute difference between binary files

Index: slides.svg
==================================================================
--- slides.svg
+++ slides.svg
cannot compute difference between binary files