This update introduces several new commands, manual improvements and a new task.

Changelog

• Add a new task: Longest cycle
• Add new jump commands: jleq*, jgeq*
• Add new comparison commands: leq*, geq*
• Add absolute value commands: abs*, iabs*
• Add value sign command: sgn*
• Add (single param) neg*
• Add stack peek*
• Update manual with new commands