v6.1.0

Added 24 new icons:

• agile
• bright-crown
• bright-star
• calendar-minus
• calendar-plus
• community
• crown-circle
• crown
• git-cherry-pick-commit
• git-pull-request-closed
• key-command
• learning
• medium-priority
• okrs
• presentation
• sine-wave
• square-wave
• strategy
• t-shirt
• user-crown
• user-love
• user-star
• video-projector
• women-t-shirt