Update documentation for python pip
Add path to requirements exec
remove duplicate pip_install exec for latest case
Merge pull request #54 from saz/patch-1

Add path to requirements exec
Merge pull request #55 from saz/patch-2

remove duplicate pip_install exec for latest case
Fix pip 1.5/1.4.1 handling
Drop stderr in pip --version
Merge pull request #56 from vholer/master

Drop stderr in pip --version
Fix syntax error with brace prioritization
Merge branch 'master' of https://github.com/stankevich/puppet-python
Merge pull request #57 from jalli/master

Fix pip wheel handling when wheels are supported but --no-use-wheel flag is not
Version 1.6.3
prevent Facter error when packages not installed

on RHEL systems, `pkg.retrieve[pkg.property(:ensure)]` returns `:absent`
when a package is not installed; this can generate an unsightly error
when running these facts on a RHEL system where the necessary OS
packages are not installed:

    [root@gepeto ~]# facter -p osfamily
    RedHat
    [root@gepeto ~]# facter -p lsbmajdistrelease
    5
    [root@gepeto ~]# grep version /etc/puppet/modules/python/Modulefile
    version      '1.6.3'
    [root@gepeto ~]# facter -p virtualenv_version pip_version
    Could not retrieve virtualenv_version: can't convert Symbol into String
    Could not retrieve pip_version: undefined method `[]' for nil:NilClass
    Could not retrieve pip_version: can't convert Symbol into String
    pip_version =>
    virtualenv_version =>

Fixes #50
Merge pull request #60 from huit/el5_facts_error_message

prevent Facter error when packages not installed
Add begin/rescue/end to setcode block

This silences these warnings:

Could not retrieve pip_version: undefined method `[]' for nil:NilClass
Could not retrieve pip_version: can't convert Symbol into String
Add begin/rescue/end to setcode block

This silences these warnings:

Could not retrieve pip_version: undefined method `[]' for nil:NilClass
Could not retrieve pip_version: can't convert Symbol into String
Merge pull request #62 from genome-vendor/master

Silence warnings when programs are not installed
Release 1.6.4
adds external pkgname variable
Merge pull request #65 from marcinzaremba/fix-pip-name

Same package for mutiple virtualenvs