[In Progress] cleanup perl frameworks installation scripts, see #966

Per #966, this PR is an attempt to clean up the Perl frameworks' installation scripts. Please do not merge yet.
At some point before you merge all this, add a `bash_profile.sh` to each of these directories that says the following: 

```
#!/bin/bash

export PERL_PATH=$IROOT/perl-5.18
export PATH=${PERL_PATH}/bin:$PATH
```

and change all of these lines from `perl-5.18/bin/cpanm <stuff>` to `cpanm <stuff>`