Adds a level option to gifsicle
Send --unoptimize if Gifsicle level is 0
Obey rubucop
Fix spelling mistake
Add careful flag as an option
Add careful option
remove --unoptimize
Make careful description shorter
Don't use level=0 to set unoptimization flag
Merge branch 'master' of github.com:toy/image_optim

Conflicts:
	lib/image_optim/worker/gifsicle.rb
Added to changelog
Use interpolation with the --optimize argument
Remove spacing and dots
Update README
Add needed spaces, and don't write a novel in the help
Add a space for the compression-level
Merge branch 'master' of github.com:kaspergrubbe/image_optim into kaspergrubbe-gifsicle-level-option
Merge branch 'master' of github.com:kaspergrubbe/image_optim into kaspergrubbe-gifsicle-level-option
Merge branch 'kaspergrubbe-gifsicle-level-option'