added chapter {Background}
Spectral update + KNN

der er sat kilder i Spectral analysis og MFCC
og så er jeg begyndt på KNN men har ikke kunne finde nogle gode kilder
at citere :S
changes in KNN

reformulated som part of the KNN and included a pic
still needs proper refs
m
Merge pull request #1 from RasmusBlind/FinalRasmusBranch

Final rasmus branch
investigation chapter + SOTA chapter

Added chapter + article elaborated (Hazan, 2010), added sources, and
fixed SOTA-Chapter.
Merge pull request #2 from RasmusBlind/Emil's-Branch

Emil's branch
Dina-RMS.. branch updated with master