Kata

Write a function that accepts a string and checks if it is a palindrome. A palindrome, as defined by Wikipedia, is "a word, phrase, number, or other sequence of symbols or elements that reads the same forward or reversed, with general allowances for adjustments to punctuation and word dividers." For example, "Amor, Roma" is a palindrome because it is the same both forward and backward, when we adjust the punctuation and spaces. Other examples of palindromes include "Taco cat" and "racecar". For more examples, check http://en.wikipedia.org/wiki/Palindrome.

Your function should return true if the string is a palindrome, and false if not. Ignore all punctuation.