Reprozip

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Features:
* All reprounzip plugins can be installed with `pip install reprounzip[all]`
* Various improvements to interactive vagrant console
* Adds support for generic plugins (alongside unpackers)
* Adds reprounzip-vistrails plugin
* Pressing Ctrl+C while tracing won't abort anymore; press it twice for SIGKILL

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Bugfixes:
* reprounzip showed duplicated logging messages
* Makes 'run' commands not fail if the command returns an error code
* Unicode issues with Vagrant on Windows Python 3
* Warning for files read then written didn't show the filenames
* Fixes resetted input files breaking 'showfiles'

Features:
* 'docker upload' command
* Adds signals (currently unused, needed for future plugins)

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Bugfixes:
* Copying files from host to chroot when some packages where not packed
* Don't use the full command path in directory's script
* Fixes socketcall() handling

Features:
* Displays a warning for READ_THEN_WRITTEN files
* chroot restores files' owner/group
* Adds 'reprounzip info' command
* Better error messages when trying to unpack on incompatible system
* Identifies input files, which can be replaced ('upload' operation)
* Identifies output files, which can be retrieved ('download' operation)
* New command-line interface for unpackers, with setup/run/destroy; you can now do everything through reprounzip
* Vagrant now defaults to --use-chroot`, added --no-use-chroot
* Adds --summary and --missing to installpkgs
* Adds Docker unpacker (no uploading support yet)

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(reprounzip only)

Bugfixes:
* Once busybox was in the local cache, setting it up could crash
* 'script.sh' files were not set as executable

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(reprozip only)

Bugfixes:
* Don't crash when packing an experiment that wrote in temporary directories

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Bugfixes:
* Handles Linux changing thread id to thread leader's on `execve()`
* Correctly handles processes dying from signals (e.g. SEGV)
* Fixes case of rt_sigreturn

Features:
* Database stores `is_directory` field
* Handles `mkdir()`, `symlink()`
* Forces pack to have a `.rpz` extension
* Displays a warning when the process uses `connect()` or `accept()`
* Improved logging
* Handles i386 compatibility mode on x86_64
* Handles *at() variants of system calls with AT_FDCWD