Compacted and fixed

This code is just "hello.js" with different responses. The main problem with the code was that the code would search like this
"echelon screw you" (converted to lower case) == "Screw you"
indexOf is case sensitive.

There also was too many index searches, an array would suffice.
Update rudeness.js
Merge pull request #62 from MrRatermat/patch-3

Compacted and fixed