New renormalization formula
- Removed sqrt() call
- Removed log() call
- Improved precision
- 56% reduced execution time
- Identical function (mathematically equivalent)
Added "AUTHORS" file
Removed .txt extension from LICENSE
Rewrote Makefile
Removed items from README.md's TODO section -- may fork into seperate
  file one day
Tweaked iterator.h to compile as seperate iterator.o and link afterwards