update installation.rst to use pip, pyvenv, Python 3.4#2466

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stevepiercy merged 1 commit intoPylons:docs/easy-install-to-pip.2104from stevepiercy:docs/easy-install-to-pip.2104

Apr 11, 2016

+107-274

Commits on Apr 10, 2016

- update installation.rst to use pip, pyvenv, Python 3.4
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