EnterpriseDB: PostgreSql 9.4 Where is the Language Pack Installer?

Hi,
I am trying to locate the EnterpriseDB Language Pack (pl/pythonu, pl/perlu)
I found the PostgreSql Installer (postgresql-9.4.4-1-linux-x64.run) at enterprisedb.com, and was successful in running it

However, I thought the Language Pack was part of the installer, and it seems it is not
I found the README for the language pack (http://get.enterprisedb.com/docs/README-languagepack.txt)
but cannot find the Installer.

We are on Linux (2.6.32-358.14.1.el6.x86_64 #1 SMP Tue Jul 16 23:51:20 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux)
We have been using PostgreSQL 9.3.4 for approx. 1 year. I am new to PostgreSQL, and new here, and don't know how the original software was acquired or installed.

We would like to send email from the PostgreSQL database, and I have developed a Python routine that I would like to use with the PL/Pythonu language extension

Thanks,

STeve

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