Reprozip

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(reprounzip-vistrails didn't change)

Bugfixes:
* Tracer: correctly handle `chdir()` in multi-threaded processes
* Fix leaked file descriptors, eventually making SQLite3 fail
* No longer exceed cmdline length in Dockerfile in big .RPZ pack
* Fixes `check_output` call when running Docker (not available in Python 2.6)
* Fixes installation of `sudo` failing if original machine wasn't Debian
* Don't make TAR error status fatal in Dockerfile (might not run; this is needed because Docker mount some files in the container that can't be overwritten)

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(reprounzip and plugins only)

Bugfixes:
* Fixes reprounzip-vistrails failing because of reporting
* Fixes reprounzip-vistrails not escaping correctly in XML in some conditions
* Fixes docker run failing to read Docker's JSON output on Python 3
* Fixes reprounzip chroot mounting too many filesystems
* Fixes typo stopping reprounzip from running on unsupported distribs

Features:
* Adds Debian 8 'Jessie' to Vagrant boxes & Docker images
* Adds Ubuntu 15.04 'Vivid' to Vagrant boxes & Docker images

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(reprozip only)

Bugfixes:
* Fixes installation on Python 3 with 7-bit locale
* Fixes reprozip not showing traceback on exception
* Fixes bug with multiple runs (`trace --continue`)

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(reprozip only)

Bugfixes:
* Fixes an overflow in _pytracer for some syscalls.

----------------

(reprounzip-vistrails didn't change)

Bugfixes:
* Fixes `debug` log messages not being printed
* Pressing Ctrl+C wouldn't stop package identification with KeyboardInterrupt
* Fixes an error message while destroying a docker experiment
* Fixes docker not installing packages if they were packed
* Fixes docker always reporting exit status 0

Features:
* Adds `--install-pkgs` options to `docker setup`, to prefer installing
from package manager over unpacking the packed files
* With vagrant or docker, original machine hostname is restored
* X11 support for chroot, vagrant and docker unpackers

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(reprounzip-vistrails didn't change)

Bugfixes:
* Goes back to pack format 0.4: generates `.rpz` files readable by older reprounzip versions
* Fixes experiment not having a PTY in some conditions
* Rewrite absolute paths on command-line for directory unpacker

Features:
* Python 2.6 support for reprounzip (except 'graph')
* Makes error messages more readable
* Default trace directory renamed from `.reprozip` to `.reprozip-trace`
* Adds a log file under $HOME/.reprozip/log
* reprounzip-vagrant will use 'ssh' executable if it's available; should be more reliable, especially on Windows
* Automatically collects usage information. Nothing will be sent before you opt-in, and we made sure to only collect general details