Update docs for PyPI python-openzwave install

PYOZW is now installed automatically from PyPI, simplifying the
installation process significantly.

source/_docs/installation/virtualenv.markdown

@@ -104,30 +104,3 @@ Upgrading Home Assistant is simple, just repeat steps 3, 5 and 6.
 ### {% linkable_title Starting Home Assistant on boot %}
 
 The [autostart instructions](/getting-started/autostart/) will work just fine, just be sure to replace `/usr/bin/hass` with `/srv/homeassistant/bin/hass` and specify the `homeassistant` user where appropriate.
-
-### {% linkable_title Installing python-openzwave in a virtualenv %}
-
-If you want to use Z-Wave devices, you will need to install `python-openzwave` in your virtualenv. This requires a small tweak to the instructions in [the Z-Wave Getting Started documentation](/getting-started/z-wave/)
-
-Install the dependencies as normal (Note: you will need to do this as your normal user, since `homeassistant` isn't a sudoer).
-
-```bash
-$ sudo apt-get install cython3 libudev-dev python3-sphinx python3-setuptools git
-```
-
-Then, activate your virtualenv (steps 3 and 5 above) and upgrade cython.
-
-```bash
-(homeassistant)$ pip3 install --upgrade cython==0.24.1
-```
-
-Finally, get and install `python-openzwave`.
-
-```bash
-(homeassistant)$ mkdir /srv/homeassistant/src
-(homeassistant)$ cd /srv/homeassistant/src
-(homeassistant)$ git clone https://github.com/OpenZWave/python-openzwave.git
-(homeassistant)$ cd python-openzwave
-(homeassistant)$ PYTHON_EXEC=`which python3` make build
-(homeassistant)$ PYTHON_EXEC=`which python3` make install
-```

source/_docs/z-wave.markdown

@@ -14,57 +14,17 @@ redirect_from: /getting-started/z-wave/
 
 There is currently support for climate, covers, lights, locks, sensors, switches and thermostats. All will be picked up automatically after configuring this platform.
 
-### {% linkable_title Installation in Virtualenv (python-OpenZWave) %}
-
-If you installed Home Assistant using a virtual environment then please read the instructions on [Installing python-OpenZWave in a virtualenv](https://home-assistant.io/docs/installation/virtualenv/#installing-python-openzwave-in-a-virtualenv).
-
 ### {% linkable_title Installation %}
 
-To allow Home Assistant to talk to your Z-Wave USB stick you will have to compile the OpenZWave library and install the related [python-OpenZWave package](https://github.com/OpenZWave/python-openzwave). This can be done as follows. _(Note: The Home Assistant docker image and the All In One installer have support for Z-Wave already built-in!)_
+As of version 0.45, Home Assistant automatically installs python-openzwave from PyPI as needed.
 
-Make sure you have the correct dependencies installed before running the script:
+There is one dependency you will need to have installed ahead of time:
 
 ```bash
-$ sudo apt-get install cython3 libudev-dev python3-sphinx python3-setuptools git
+$ sudo apt-get install libudev-dev
 ```
 
-Make sure you have at least version 0.23 and at the most 0.24.1 of cython.
+_Note: The Home Assistant docker image, HASSbian, and the All In One installer all have support for Z-Wave already built-in!_
-
-```bash
-$ sudo pip3 install --upgrade cython==0.24.1
-```
-
-Then get the OpenZWave files:
-
-<p class='note warning'>Do not use root to build python-openzwave as it will surely fail.</p>
-
-```bash
-$ git clone https://github.com/OpenZWave/python-openzwave.git
-$ cd python-openzwave
-$ PYTHON_EXEC=$(which python3) make build
-$ sudo PYTHON_EXEC=$(which python3) make install
-```
-
-<p class='note'>
-Instead of `make install`, you can alternatively build your own python-openzwave package which can be easily uninstalled:
-</p>
-
-```bash
-$ sudo apt-get install -y checkinstall
-$ sudo PYTHON_EXEC=$(which python3) checkinstall --pkgname python-openzwave --pkgversion 1.0 --provides python-openzwave
-```
-
-With this installation, your `config_path` needed below will resemble:
-
-```bash
-/usr/local/lib/python3.4/dist-packages/libopenzwave-0.3.0b8-py3.4-linux-x86_64.egg/config
-```
-
-If you followed along with setting up a virtual environment, your path will be:
-
-```bash
-/srv/homeassistant/python-openzwave/openzwave/config
-```
 
 ### {% linkable_title Configuration %}
 
@@ -77,7 +37,7 @@ zwave:
 Configuration variables:
 
 - **usb_path** (*Optional*): The port where your device is connected to your Home Assistant host.
-- **config_path** (*Optional*): The path to the Python OpenZWave configuration files. Defaults to the folder `config` in your Python OpenZWave install directory.
+- **config_path** (*Optional*): The path to the Python OpenZWave configuration files. Defaults to the 'config' that is installed by python-openzwave
 - **autoheal** (*Optional*): Allows disabling auto Z-Wave heal at midnight. Defaults to True.
 - **polling_interval** (*Optional*): The time period in milliseconds between polls of a nodes value. Be careful about using polling values below 30000 (30 seconds) as polling can flood the zwave network and cause problems.
 - **device_config** (*Optional*): This attribute contains node-specific override values. (For releases prior to 0.39 this variable is called **customize**) See [Customizing devices and services](https://home-assistant.io/getting-started/customizing-devices/) for format: