Update README.md

Moved images to a more stable host.
Noop.

Made item selection more direct.
Formatting.
Added conversion to base64 inline <img> tags.

Refactored setPasteboardString into a function.
Added Base64Encode function.
Moved up version from 0.005 to 0.006.
Changed to another icon, made it retina-ready.

Made the icon myself. :D
Bumped version to 0.007.
Removed useless localization file and silly copyright string.
Changed to another icon, made it retina-ready.

Made the icon myself. :D
Bumped version to 0.007.
Removed useless localization file and silly copyright string.
Update README.md
Added smaller sizes to iconset.

(Had to keep iconset item count <= 10 or else it gave an error, hence
128 size is missing.)
Applied suggest project upgrade changes.
merged