Update pip-tools to 3.5.0

[pyup-bot]

This PR updates pip-tools from 1.11.0 to 3.5.0.

Changelog

3.5.0

Features:
- Show default index url provided by `pip`
([735](https://github.com/jazzband/pip-tools/pull/735)). Thanks atugushev
- Add an option to allow enabling/disabling build isolation
([758](https://github.com/jazzband/pip-tools/pull/758)). Thanks atugushev

Bug Fixes:
- Fix the output file for `pip-compile` with an explicit `setup.py` as source file
([731](https://github.com/jazzband/pip-tools/pull/731)). Thanks atugushev
- Fix order issue with generated lock file when `hashes` and `markers` are used together
([763](https://github.com/jazzband/pip-tools/pull/763)). Thanks milind-shakya-sp

3.4.0

Features:
- Add option `--quiet` to `pip-compile`
([720](https://github.com/jazzband/pip-tools/pull/720)). Thanks bendikro
- Emit the original command to the `pip-compile`'s header
([733](https://github.com/jazzband/pip-tools/pull/733)). Thanks atugushev

Bug Fixes:
- Fix `pip-sync` to use pip script depending on a python version
([737](https://github.com/jazzband/pip-tools/pull/737)). Thanks atugushev

3.3.2

Bug Fixes:
- Fix `pip-sync` with a temporary requirement file on Windows
([723](https://github.com/jazzband/pip-tools/pull/723)). Thanks atugushev
- Fix `pip-sync` to prevent uninstall of stdlib and dev packages
([718](https://github.com/jazzband/pip-tools/pull/718)). Thanks atugushev

3.3.1

Features:
- Added support of `pip` 19.0
([715](https://github.com/jazzband/pip-tools/pull/715)). Thanks atugushev
- Add `--allow-unsafe` to update instructions in the generated `requirements.txt`
([708](https://github.com/jazzband/pip-tools/pull/708)). Thanks richafrank

Bug Fixes:
- Fix `pip-sync` to check hashes
([706](https://github.com/jazzband/pip-tools/pull/706)). Thanks atugushev

3.2.0

Features:
- Apply version constraints specified with package upgrade option (`-P, --upgrade-package`)
([694](https://github.com/jazzband/pip-tools/pull/694)). Thanks richafrank

3.1.0

Features:
- Added support of `pip` 18.1
([689](https://github.com/jazzband/pip-tools/pull/689)). Thanks vphilippon

3.0.0

Major changes:
- Update `pip-tools` for native `pip` 8, 9, 10 and 18 compatibility, un-vendoring `pip` to use the user-installed `pip`
([657](https://github.com/jazzband/pip-tools/pull/657) and [672](https://github.com/jazzband/pip-tools/pull/672)).
Thanks to techalchemy, suutari, tysonclugg and vphilippon for contributing on this.

Features:
- Removed the dependency on the external library `first`
([676](https://github.com/jazzband/pip-tools/pull/676)). Thanks jdufresne

2.0.2

Bug Fixes:
- Added clearer error reporting when skipping pre-releases
([655](https://github.com/jazzband/pip-tools/pull/655)). Thanks WoLpH

2.0.1

Bug Fixes:
- Added missing package data from vendored pip, such as missing cacert.pem file. Thanks vphilippon

2.0.0

Major changes:
- Vendored `pip` 9.0.3 to keep compatibility for users with `pip` 10.0.0
([644](https://github.com/jazzband/pip-tools/pull/644)). Thanks vphilippon

Features:
- Improved the speed of pip-compile --generate-hashes by caching the hashes from an existing output file
([641](https://github.com/jazzband/pip-tools/pull/641)). Thanks justicz
- Added a `pip-sync --user` option to restrict attention to user-local directory
([642](https://github.com/jazzband/pip-tools/pull/642)). Thanks jbergknoff-10e
- Removed the hard dependency on setuptools
([645](https://github.com/jazzband/pip-tools/pull/645)). Thanks vphilippon

Bug fixes:
- The pip environment markers on top-level requirements in the source file (requirements.in)
are now properly handled and will only be processed in the right environment
([647](https://github.com/jazzband/pip-tools/pull/647)). Thanks JoergRittinger

Links

• PyPI: https://pypi.org/project/pip-tools
• Changelog: https://pyup.io/changelogs/pip-tools/
• Repo: https://github.com/jazzband/pip-tools/

[coveralls]

Coverage increased (+0.06%) to 30.441% when pulling 155737c on pyup-update-pip-tools-1.11.0-to-3.5.0 into 8613d9d on master.

[coveralls]

Coverage increased (+0.06%) to 30.441% when pulling 155737c on pyup-update-pip-tools-1.11.0-to-3.5.0 into 8613d9d on master.

[pyup-bot]

Closing this in favor of #272