Modify FFT transform..() method to return data
Add class which fast computes squared error
Add new JUnit tests
Fix bug. Not all tests are passing, but it's probably rounding error
It WAS bug - correct counting squared error - get abs() on the end
Refactoring
Change method of resizing array
Correct method which computes matchingRate
...and revert 'incorrect' method of computing matchingRate, because works better
Save fft-ed values as an array, not as an array of arrays
Format code
Use FFT to compute fast mean squared error
Add setData() method to FFT class
Refactor - now I know that 'colored spectrum' = spectogram
Merge branch 'development' of github.com:ArcCha/sound_recognition into development

Conflicts:
	src/main/java/pl/krakow/v_lo/algosound/Matcher.java
	src/main/java/pl/krakow/v_lo/algosound/gui/AlgoSoundGUI.java
	src/main/java/pl/krakow/v_lo/algosound/gui/ColoredSpectrum.java
	src/main/java/pl/krakow/v_lo/algosound/gui/ColoredSpectrumChart.java
	src/main/java/pl/krakow/v_lo/algosound/gui/Spectrogram.java
	src/main/java/pl/krakow/v_lo/algosound/gui/SpectrumChart.java
This is spectogram