ReproZip: 1.1

(reprounzip-vistrails didn't change)

Bugfixes:
* Fix possible crash reading `docker inspect` output
* Fix reprozip-jupyter on more recent Tornado
* Fix failure in reprounzip-docker upload if `/bin/sh` is missing
* Have `reprounzip directory` execute with the correct interpreter (e.g. packed `ld-linux.so`)
* Fix "invalid cross-device link" errors in vagrant download if the destination is not on the same device as the unpacked directory

Enhancements:
* Add PyQt5 compatibility to reprounzip-qt
* reprounzip-docker: Keep ownership of uploaded files
* Add a new certificate to download parameters, valid through 2121 (previous expires 2024)
* Always show full path of executed files in `reprozip testrun`
* Improved merging of pack on top of base image in reprounzip-docker
* Made sure the root is a mountpoint in reprounzip-vagrant, as some applications expect it (e.g. Elasticsearch)
* Disable unpacker options that won't work in reprounzip-qt (e.g. 'directory' and 'chroot' on non-Linux)