doc: updating installation instructions

Re-writing some of the instructions for clarity plus updating with the
correct pip invocations.

doc/source/installation.rst

@@ -42,9 +42,8 @@ and add ``<path_to_android_sdk>/sdk/platform-tools`` and ``<path_to_android_sdk>
 to your ``PATH``.  To test that you've installed it properly, run ``adb
 version``. The output should be similar to this::
 
-        $$ adb version
+        adb version
         Android Debug Bridge version 1.0.31
-        $$
 
 .. _here: https://developer.android.com/sdk/index.html
 
@@ -82,8 +81,8 @@ similar distributions, this may be done with APT::
           is recommended that you update pip and setuptools before proceeding
           with installation::
 
-                  sudo pip install --upgrade pip
-                  sudo pip install --upgrade setuptools
+                  sudo -H pip install --upgrade pip
+                  sudo -H pip install --upgrade setuptools
 
           If you do run  into this issue after already installing some packages,
           you can resolve it by running ::
@@ -110,11 +109,11 @@ Workload Automation 2 depends on the following additional libraries:
 
 You can install these with pip::
 
-        sudo pip install pexpect
-        sudo pip install pyserial
-        sudo pip install pyyaml
-        sudo pip install docutils
-        sudo pip install python-dateutil
+        sudo -H pip install pexpect
+        sudo -H pip install pyserial
+        sudo -H pip install pyyaml
+        sudo -H pip install docutils
+        sudo -H pip install python-dateutil
 
 Some of these may also be available in your distro's repositories, e.g. ::
 
@@ -157,13 +156,22 @@ may not always have Internet access).
 Installing
 ==========
 
-.. note:: If you downloaded the Workload Automation source code from GitHub, open
-          the README.rst file to start the setup process. A wlauto tarball will
-          be created under the dist directory once the process is complete.
+Installing the latest released version from PyPI (Python Package Index)::
+
+       sudo -H pip install wlauto
+
+This will install WA along with its mandatory dependencies. If you would like to
+install all optional dependencies at the same time, do the following instead::
+
+       sudo -H pip install wlauto[all]
+
+Alternatively, you can also install the latest development version from GitHub
+(you will need git installed for this to work)::
+
+       git clone git@github.com:ARM-software/workload-automation.git workload-automation
+       sudo -H pip install ./workload-automation
 
-Download the tarball and run pip::
 
-        sudo pip install wlauto-$version.tar.gz
 
 If the above succeeds, try ::
 
@@ -300,13 +308,14 @@ that location.
 If you have installed Workload Automation via ``pip`` and wish to remove it, run this command to
 uninstall it::
     
-    sudo pip uninstall wlauto
+    sudo -H pip uninstall wlauto
 
 .. Note:: This will *not* remove any user configuration (e.g. the ~/.workload_automation directory)
 
+
 (Optional) Upgrading
 ====================
 
 To upgrade Workload Automation to the latest version via ``pip``, run::
     
-    sudo pip install --upgrade --no-deps wlauto
+    sudo -H pip install --upgrade --no-deps wlauto

doc/source/quickstart.rst

@@ -27,18 +27,12 @@ WA uses a number of its utilities, not just adb. For the SDK, make sure that eit
 In addition to the base Python 2.7 install, you will also need to have ``pip``
 (Python's package manager) installed as well. This is usually a separate package.
 
-Once you have the prerequisites and a tarball with the workload automation package,
-you can install it with pip::
+Once you have those, you can install WA with::
 
-        sudo pip install wlauto-$versiondev.tar.gz
+        sudo -H pip install wlauto
 
-Where $version is the current version of WA.
-
-.. note:: If you downloaded the Workload Automation source code from GitHub, open the
-          README.rst file to start the setup process. A wlauto tarball will be created
-          under the dist directory once the process is complete.
-
-This will install Workload Automation on your system, along with other dependencies.
+This will install Workload Automation on your system, along with its mandatory 
+dependencies.
 
 (Optional) Verify installation
 -------------------------------