Qiskit-terra

Changed
-------
- Rename repository to ``qiskit-terra`` (606).
- Update Bloch sphere to QuTiP version (618).

Removed
-------
- Remove OpenQuantumCompiler (610).

Fixed
-----
- Fixed broken process error and simulator slowdown on Windows (613).
- Fixed yzy_to_zyz bugs (520, 607) by moving to quaternions (626).

Changelog
========
Added
-----
- Retrieve IBM Q jobs from server (563, 585).
- Add German introductory documentation (``doc/de``) (592).
- Add ``unregister()`` for removing previously registered providers (584).
- Add matplotlib-based circuit drawer (579).
- Adding backend filtering by least busy (575).

Changed
-------
- Remove backend filtering in individual providers, keep only in wrapper (575).
- Single source of version information (581)
- Bumped IBMQuantumExperience dependency to 1.9.6 (600).
- For backend status, `status['available']` is now `status['operational']` (609).
- Added support for registering third-party providers in `register()` (602).

Removed
-------
- Remove OpenQuantumCompiler (610).
- Remove Clifford simulator from default available_backends, until its stable
release (555).
- Remove ProjectQ simulators for moving to new repository (553).

Fixed
-----
- Fix issue with unintended inversion of initializer gates (573).
- Fix issue with skip_transpiler causing some gates to be ignored silently (562).

Changelog
=========

Added

Performance improvements:
remove deepcopies from dagcircuit, and extra check on qasm() (523)

Changed

Rename repository to qiskit-core (530).
Repository improvements: new changelog format (535), updated issue templates (531).
Renamed the specification schemas (464).
Convert LocalJob tests into unit-tests. (526)
Move wrapper load_qasm_* methods to a submodule (533).

Removed

Remove Sympy simulators for moving to new repository (514)

Fixed

Fix erroneous density matrix and probabilities in C++ simulator (518)
Fix hardcoded backend mapping tests (521)
Removed _modifiers call from reapply (534)
Fix circuit drawer issue with filename location on windows (543)
Change initial qubit layout only if the backend coupling map is not satisfied (527)
Fix incorrect unrolling of t to tdg in CircuitBackend (557)
Fix issue with simulator extension commands not reapplying correctly (556)

Changelog
=========
* Added load_qasm_file / load_qasm_string methods
* Fixed a crash in the cpp simulator for some linux platforms
* Dependencies version bumped
* Fixed some minor bugs

Changelog
=========
* Deprecating ibmqx_hpc_qasm_simulator and ibmqx_qasm_simulator in favor of: ibmq_qasm_simulator.
* Adding Result.get_unitary()
* Fixing a Mapper issue.
* Fixing Windows 7 builds.

Changelog
=========
There are no code changes.
MacOS simulator has been rebuilt with external user libraries compiled statically, so there's no need for users to have a preinstalled gcc environment.
Pypi forces us to bump up the version number if we want to upload a new package, so this is basically what have changed.