Version 2.1.0a2

• Handle invalid appliances files
• Sync appliances
• Fix naming of node with a number in the name
• Fix race condition in startup of capture
• Fix bug when exporting debug information with multiple remote servers
• Fix OSError when uploading images
• Fix an error when a symbol is not available on filesystem
• Fix ServerDisconnectedError for stop_all
• This fix the images always included in portable project
• Fix support of docker appliance with a usage
• Duplicate API for ATM, Ethernet Hub and Frame Relay Switch
• History support for console and telnet application
• Fix IOU image upload
• Duplicate IOU
• Support duplicate for Docker
• Duplicate support for qemu