Taskserver Documentation Update

The Taskserver setup documentation has been significantly improved. The setup page is:

• Setting up your own Taskserver

The sub-pages now cover single topics:

• Pre-Installation Preparation
• Install binary package
• Install from tarball
• Install from git
• Server Configuration
• Server Start/Stop
• Add User to Server
• Configure Taskwarrior
• Syncing Taskwarrior
• Troubleshooting

Feedback on the new pages would be appreciated.