Gns3-server

* Catch ProcessLookupError when updating iouyap config. Fixes 255.
* Fixes IOS adapters and WICS cannot be removed. Fixes 282.
* Makes sure the loop is running when closing the app.
* Catch GeneratorExit exception. Fixes 231.
* Fixes missing chipset info for VirtualBox VM. Fixes 254.
* Fixes IOURC upload.
* Restore images & projects tarballs
* Allow users to backup projects and images.
* Update gns3.conf.upstart.
* Fix incorrect vboxmanage sudo command.
* Backport from 1.4: option to drop nvram & disk files for IOS routers in order to save disk space.
* Backport from 1.4: Remove timeout to wait for connections to finish.
* Backport from 1.4: Fixes RuntimeError: Event loop is closed.
* Backport from 1.4: Bind host on 0.0.0.0 when checking for a free UDP port.

* Prevent install on Python 2

* Fix an issue with 1.4dev compatibility

* Ignore invalid characters when reading the output of a process
* Turn on / off authentication
* Ensure no colored output on Windows
* Do not stop saving IOS router configs when there is an exception while a project is committed.
* Create a private config file if expected
* Distribute our own version of netifaces working with python 3
* Fix crash if a private config exist in IOS but no private config file
* Basic Auth support
* Fix crash when virtualbox list of VMS return an empty line

* Drop useless dependencie dateutil
* Check if port or adapter is connected before starting/stopping a packet capture. Fixes 196.
* Prevent users to add links to running Qemu VMs and start a capture on running VirtualBox VMs.
* Fixes bug: couldn't set PCMCIA disk1 size for IOS routers.
* Fix crash if you pass an invalid hostname
* Catch VPCS kill errors
* Raise a VirtualBox error if adapter doesn't exists
* Ignore VirtualBox VM Name with a carriage return in name
* Cleanup the temporary project after modules have been notified of the path change
* Do not return error if we can't remove the old project directory
* Catch encoding errors in windows logger
* Use setter for the qemu_path (allow to pass only the binary name)
* Fixes TAP connection when using VPCS.
* Fix crash launching qemu on OSX from another location.
* Adds NAT NIO in device schema validation so they can return an error that it is not supported.

* Check for empty iourc path.
* Fixes bugs with IOS router configs. Fixes 354.
* Use a temporary directory as egg cache
* Catch crash error in IOU in case of permission denied