Add IntelliJ project files.
Add documentation to the primary application classes.
Adjust the structure of the Palindrome page Javascript file to conform to the standard module pattern.

Add minor documentation to the Palindrome page Javascript file.
Modify the initialization of the Palindrome module on the Palindrome page to match the change.
Update the project README file.
Merge pull request #1 from armstnp/fill-readme

Update documentation; polish Javascript structure.