Median of Two Sorted Arrays

Accepted solution in Python to problem “Median of Two Sorted Arrays”,
thought process is referred to MIT handout
(http://www2.myoops.org/course_material/mit/NR/rdonlyres/Electrical-Engi
neering-and-Computer-Science/6-046JFall-2005/30C68118-E436-4FE3-8C79-6BA
FBB07D935/0/ps9sol.pdf) and Sophie’s solution
(http://www.leetcode.com/2011/03/median-of-two-sorted-arrays.html#commen
t-1053)