Added Office 365 and Sendloop

See #448
Added logos for Office 365 and Sendloop
Updated Office 365 and Sendloop logos
Updated Office 365 and Sendloop logos (again)

Changed to @mxxcon's beautiful logos instead of my terrible ones.
Merge pull request #452 from jamcat22/patch-4

Added Office 365 and Sendloop
Added Desura to gaming.yml
Renamed FFXIV into SquareEnix in gaming.yml
Merge pull request #461 from mxxcon/SquareEnix

Renamed FFXIV into SquareEnix in gaming.yml
Merge pull request #460 from mxxcon/Desura

Added Desura to gaming.yml
Updating Duo Security entry

Just a quick edit to list our formal name, "Duo Security" rather than the existing shorthand, "Duo".
Merge pull request #463 from mstanislav/patch-1

Updating Duo Security entry