Added organization logos
Add slides on GlusterFS and the Gluster community
Proofreading, copy-editing, and a little personal tweaking.

Signed-off-by: Jose A. Rivera <jarrpa@redhat.com>
Added speaker notes
Fixed some title formatting
Merging changes from Jose; incoporating them with speaker notes.
Minor fixes to wordings and speaker notes.
Merge remote-tracking branch 'vineet/master'

Conflicts:
	slides.html
Add speaker notes for Gluster history and what is GlusterFS sections