Updates and issues in 2. Install Party

[MaggaP]

1. For installing Anaconda, might want to make explicit that you need to do
   wget https://repo.continuum.io/archive/Anaconda2-4.2.0-Linux-x86_64.sh
   it wasn't immediately obvious to me.
2. Now needs to be
   bash Anaconda2-4.2.0-Linux-x86_64.sh
   to start running the installer which is a minor change to the line in the document
3. I'm not 100% certain but when advising how to install the latest git version in step 7 is the line
   $ export CURLDIR=$HOME/anaconda
   I'm unsure whether this is supposed to be here since it references anaconda.

Didn't want to go ahead and make the changes myself as i'm currently on the starterkit so not sure if these are legitimate issues that need fixing or i've overlooked something.