Shiftboiler

This is a maintenance release that removes residual users functionality that now has been fully extracted into its own [shiftuser](https://pypi.org/project/shiftuser/1.0.0/) library.

**Note:** this version contains an issue with `./cli run` command. Please upgrade directly to version `0.8.1` that addresses this issue.

This is a major release that introduces some breaking changes and some new features. Here is what's changed:

* The main one is that the users feature is now gone. The functionality was extracted into a separate [`shiftuser`](https://github.com/projectshift/shift-user) package.
* In development mode restart timer is now desabled by default. Set `TIME_RESTARTS=True` is you want to measure your bootstrap time
* In development mode you can now pass SSL context to `./cli run` command that can be set either to `adhoc` or `cert_path,pk_path` to run dev server wit hhttps
* Signing your python interpreter functionality was removed from both the CLI and documentation. It stopped working for Mac users some time ago with new OSX releases

This is another bugfix release that addresses some of the issues:

* You can now use boiler without installing flask in cases when you just want to use the CLI functionality ([92](https://github.com/projectshift/shift-boiler/issues/92))
* More meaninful error messages when a user forgot to create a `.env` file to hold sensitive secrets ([93](https://github.com/projectshift/shift-boiler/issues/93))
* Introduction of BaseConfig in project skeleton to hold cong settings shared between environments ([94](https://github.com/projectshift/shift-boiler/issues/94))

This is a minor release that mostly deals with keeping dependencies up to date.

Minor patch release that moves browsersync detection functionality fom custom
`dev_proxy()` jinja function to application bootstrap and makes it globally
available as `g.dev_proxy`. The original jinja function still works and now uses
this new functionality.

Minor bug fix release to fix issues with logging feature, as described in [90](https://github.com/projectshift/shift-boiler/issues/90)