Various Complexity CodeEval Passed Challenges - Python Edition

Added two new passed moderate-complexity challenges in Python programming language:

• Mth to last element
• Pangrams

A pangram (Greek: pan gramma, "every letter") or holoalphabetic sentence for a given alphabet is a sentence using every letter of the alphabet at least once. Pangrams have been used to display typefaces, test equipment, and develop skills in handwriting, calligraphy, and keyboarding.

Version 3.2.

My CodeEval.com Rating is #576 (July 14, 2013) after passing 2 more Challenges

Various Complexity CodeEval Passed Challenges

5 more easy-complexity passed challenges added:

1. armstrongNumbers
2. setIntersection
3. NModM (without use of Modulus operator)
4. swapCase
5. happyNumbers

Version 3.1.

My CodeEval.com Rating is #642 (July 14, 2013) after passing 5 more Challenges

Moderate Complexity CodeEval Passed Challenges

All Easy Complexity CodeEval Passed Challenges added.

Version 2.0.

My CodeEval.com Rating is #1099 after passing Moderate Complexity Challenges

Hard Complexity CodeEval Passed Challenges

Hard Complexity CodeEval Passed Challenge added.

Version 3.0.

My CodeEval.com Rating is #789 (July 9, 2013) after passing Hard Complexity Challenge

Easy Complexity CodeEval Passed Challenges

All Easy Complexity CodeEval Passed Challenges added.
Version 1.0.

My CodeEval.com Rating is #2817 after passing Easy Complexity Challenges