[HW2] global name 'RSA' is not defined

[kevinjfoley]

Students are getting errors related to 'RSA', for example per https://ucbischool.slack.com/archives/C1VFF2Y3U/p1495496191162070

[root@saltmaster ~]# salt-cloud -p sl_centos7_small mytests
[INFO    ] salt-cloud starting
[INFO    ] POST https://api.softlayer.com/xmlrpc/v3.1/SoftLayer_Account
[ERROR   ] There was a profile error: global name 'RSA' is not defined

Resolved the issue by installing dependencies first, code below should be added to instructions

 yum install -y python-pip && pip install SoftLayer apache-libcloud
 yum install openssl-devel
 yum install gcc
 yum install python-devel
 pip install M2Crypto
 curl -o /tmp/install_salt.sh -L https://bootstrap.saltstack.com && sh /tmp/install_salt.sh -Z -M git 2015.5