Docs: use pip for installation

Author: nicoddemus

doc/_templates/indexsidebar.html

@@ -11,7 +11,7 @@ <h3>Download</h3>
 [<a href="{{ pathto('changelog') }}">Changes</a>]</p>
 <p>Get execnet from the <a href="http://pypi.python.org/pypi/execnet">Python Package
 Index</a>, or install it with:</p>
-<pre>easy_install -U execnet</pre>
+<pre>pip install -U execnet</pre>
 {% endif %}
 
 <h3>Questions? Suggestions?</h3>

doc/install.rst

@@ -1,14 +1,10 @@
 Info in a nutshell
 ====================
 
-**Pythons**: 2.7, 3.4+, Jython-2.5.1, PyPy-1.2
+**Pythons**: 2.7, 3.4+, PyPy 2 & 3
 
 **Operating systems**: Linux, Windows, OSX, Unix
 
-**Requirements**: plain distutils, setuptools_ or Distribute_
-
-**Installers**: easy_install_ and pip_ or distutils
-
 **Distribution names**:
 
 * PyPI name: ``execnet``
@@ -21,19 +17,10 @@ Info in a nutshell
 Installation
 ====================
 
-Install a public `pypi release`_ via `easy_install`_ or pip_::
-
-    easy_install -U execnet
-
-        or
+Install via pip_::
 
     pip install execnet
 
-        or
-
-    git clone https://github.com/pytest-dev/execnet.git
-    python setup.py install # or 'develop' or add checkout path to PYTHONPATH
-
 Next checkout the basic api and examples:
 
 .. toctree::
@@ -43,7 +30,6 @@ Next checkout the basic api and examples:
    basics
    changelog
 
-.. _`easy_install`: http://peak.telecommunity.com/DevCenter/EasyInstall
 .. _pip: http://pypi.python.org/pypi/pip
 .. _`github repository`: https://github.com/pytest-dev/execnet
 .. _`execnet git repository`: https://github.com/pytest-dev/execnet