Issue #15 - Feedback from a concern citizen

One of the members of the community provided some feedback on various
problems they had run into over the years. Many of which were good,
some of which were awesome. I've incorporated them and then plan to
verbally berate them for not making their own pull request (:
Merge pull request #14 from polynomial/bash_improvements

Improvements to bash style guide from concerned citizen
Started 'Parts To Ignore' section in Scala guide