Add: New Exception
PEP {8,257}
Fix: Check size
Add Test: Test for file limit
Realloc private method: __unicode__
Run only for python
Fix: Smarter calculation
Fix: Revert bad fix on cnab file
Fix Test: Assertions correct now
Fix: Avoid regressions on calculating the size
Fix: Simplify complex algos

Two O(n*m) when m is almost always to, so O(2n) became two O(2), taking
both 'n's out of the equation.
Fix: sum looks better then always calculate len
Fix: This method won't be missed
Fix: General Optimizations
Add: Support profiling