Version 2.0.0 beta 4

• Lock aiohttp to 1.2.0 because 1.3 create bug with Qt
• Avoid a crash in some conditions when reading the serial console
• Disallow export of project with VirtualBox linked clone
• Fix linked_clone property lost during topology convert
• Catch permission error when restoring a snapshot
• Fix a rare crash when closing a project
• Fix error when you have error on your filesystem during project convertion
• Catch error when we can't access to a unix socket
• If we can't resolve compute name return 0.0.0.0
• Raise an error if you put an invalid key in node name
• Improve a lot project loading speed
• Fix a potential crash
• Fix the server don't start if a remote is unavailable
• Do not crash if you pass {name} in name
• Fix import/export of dynamips configuration
• Simplify conversion process from 1.3 to 2.0
• Prevent corruption of VM in VirtualBox when using linked clone
• Fix creation of qemu img
• Fix rare race condition when stopping ubridge
• Prevent renaming of a running VirtualBox linked VM
• Avoid crash when you broke your system permissions
• Do not crash when you broke permission on your file system during execution
• Fix a crash when you broke permission on your file system
• Fix a rare race condition when exporting debug informations
• Do not try to start the GNS3 VM if the name is none
• Fix version check for VPCS
• Fix pcap for PPP link with IOU
• Correct link are not connected to the correct ethernet switch port after conversion
• Fix an error if you don't have permissions on your symbols directory
• Fix an error when converting some topologies from 1.3