Gns3-server

* Include locale information and GNS3 VM version in crash reports.
* Fix small errors like unhandled exceptions etc.
* Import encodings.idna to avoid LookupError when standard library is in a zip file.
* Catch exceptions in various locations to fix small issues reported by Sentry.
* Check if serial pipe can be opened for VMware and VirtualBox VMs.
* Improve the invalid port format detection. Fixes https://github.com/GNS3/gns3-gui/issues/2580
* Update aiohttp verion requirement in order to support Python 3.7. Fixes https://github.com/GNS3/gns3-gui/issues/2566
* Update setup.py and fix minor issues.
* Catch asyncio.CancelledError when shutting down the server.
* Report GNS3 VM errors to the GUI server summary. Ref 1359.
* Replace vboxnet0 (if it does not exist) by the first available vboxnet interface on Windows. Fixes https://github.com/GNS3/gns3-vm/issues/102
* Check if the VirtualBox host-only network exists when starting a GNS3 VM running on VirtualBox. Ref https://github.com/GNS3/gns3-vm/issues/102
* Change file timestamps if necessary because ZIP does not support timestamps before 1980. Fixes 1360.
* Add missing coroutine decorator Ref https://github.com/GNS3/gns3-gui/issues/2566
* Refactor asyncio locking system for Python 3.7 support. Ref https://github.com/GNS3/gns3-gui/issues/2566 Ref https://github.com/GNS3/gns3-gui/issues/2568
* Use asyncio.ensure_future() instead of asyncio.async() with conservative approach to support Python < 3.4.4. Fixes https://github.com/GNS3/gns3-gui/issues/2566
* Forbid controller and computes to be different versions. Report last compute error to clients and display in the server summary.
* Fix exception with short names for Dynamips interfaces. Fixes 1386.
* Add missing Qemu boot priority values. Fixes https://github.com/GNS3/gns3-server/issues/1385

* Fix some more problems with interface short names. Fixes https://github.com/GNS3/gns3-gui/issues/2562
* Fix incorrect short port names in topology summary. Fixes https://github.com/GNS3/gns3-gui/issues/2562
* Set lower process priority when computing idle-pc value on Windows. Ref 2522.
* Catch exception: ZIP does not support timestamps before 1980. Ref 1360.
* Sync appliances

* 'caplog.text()' syntax is deprecated, use 'caplog.text' property instead.
* Remove problematic pytest-capturelog dev dependency.
* Fix API status code for start/stop/suspend/reload a node. Fixes 1353. Fix issues with test. Update documentation.
* Don't send variables to computes where are empty, Ref: 1340

* Don't release NIO UDP ports when updating docker container.
* Timeout for stream file.
* Fix switching console type from telnet to VNC throws error.
* Fix timeout error with "save as" for large projects.
* Update API documentation
* Add API endpoint to return all links attached to a node.
* Fix issue with some SVG symbols that could not be used in GNS3. This was due to the height and width values being percentages.
* Show correct free disk space value.
* Force prompt-toolkit to version 1.0.15
* Remove unwanted trailing characters and other white spaces when reading .md5sum files.
* Change order to find vnetlib on Windows (PATH -> Registry -> Default directories).

* Locks down async-timeout<3.0.0 for P3.4 support; Fixes: 1331
* Create/update project on compute when variables changes
* Support for nested global variables
* Don't clean logo images when applied to the project
* Support of supplier and variables in topology
* Project global variables
* Add command information when uBridge has an error. Ref 1289
* Handle asyncio timeouts. Ref 1307.
* Fix bug with export project. Ref 1187 1307.
* Offload slow file operations to threads for snapshots and project "save as". Ref 1187 1307.
* support based on init.sh, Ref: 2482
* Fix exception from send_signal() on Windows.
* Add support of ExtraHosts for Docker, Ref. gns3-gui2482

* Set the first byte to 0C when generating a random MAC address for a Qemu VM. Ref 1267.
* Update appliance files.
* Do not use VMnet0 when allocating VMnet adapters.
* Use SO_REUSEADDR before calling bind() where missing. Fixes 1289.
* Do not fail a Dynamips project conversion if a file being used.
* Catch exceptions when using AsyncioTelnetServer. Fixes 1321.
* Grid size support for projects.
* Remove 'include INSTALL' from MANIFEST.
* Fix issue with start all.
* Check for valid IP address and prevent to run on non-Windows platforms.
* Enable UDP tunnel option and use ICMP probing by default.
* Use the configured IP address to trace.
* Have TraceNG start without needing cmd.exe