Installing nodejs package requires backports on debian wheezy

If running gitlab on debian wheezy, you'll need to add wheezy backports to /etc/apt/sources.list (or another .list file, see http://backports.debian.org/Instructions/) before you'll be able to install the nodejs package.

This tripped me up for a minute. apt-get couldn't find the 'nodejs' package so I thought I'd try 'node'. That installed fine, but apparently it's an "Amateur Packet Radio Node program."

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