Tidy web fitted logo and Photoshop sources

[peternewman]

See OpenLightingProject/ola#1008

Remove empty pixel from original logo-mini.png
OLA-Logo-Fitted-22px@2x.png has empty pixels too

[dandaka]

@peternewman Should I commit here or make a PR from a clone?

[peternewman]

I don't believe you've got commit rights @dandaka . We go for PRs even if we do have, so other people can comment.

[peternewman]

Closed in #8 .