Web-based Version Control & Task Management

I'm seeking a skilled developer to help me locate and customize a Web-based program that effectively manages version control, comments, and changes across all our book and product development projects. The program should be capable of tracking revisions and maintaining a clear history.

Key Requirements:
- Version Control: The system must track changes, allow for commenting on edits, and maintain a clear history. It must also have a clearly defined system for every approved comment.
- Task Management: We're looking for a robust task management workflow system that can enhance our team's efficiency and collaboration.

Additional Features:
- An approval system for comments
- Status indicators for issues
- Collaborative editing tools

Ideal Skills and Experience:
- Strong background in software development, particularly in creating web-based applications
- Experience with version control systems and task management software
- Excellent understanding of collaborative tools and systems
- Ability to create a clear and effective system for managing comments and edits

I'm looking for someone who can deliver a system that meets these needs and can be integrated into our current workflow.