Changes to be committed:

Changes to libphys:
1. Corrected x and y in prepare_for_fft;
2. New function prepare_for_fft_padding that makes a square image
for fft. No padding yet.
3. New folder with old code that will be deleted in the future.

	new file:   data analysis/Pattern-fft-detect_peaks.py
	modified:   data analysis/libphys.py
	new file:   data analysis/patterns.py
	new file:   old code/.realtime.py.swp
	new file:   old code/AOM-analisys.py
	new file:   old code/FabryPerot_analysis.py
	new file:   old code/Int_sat_mot.py
	new file:   old code/Laser_detuning.py
	new file:   old code/PZ-tilting.py
	new file:   old code/Pattern-3D-for_Cover.py
	new file:   old code/Pattern-fft-detect_peaks-testing20140402.py
	new file:   old code/Pattern-generate_centred_frame.py
	new file:   old code/Rb87-F=1-201308200000.dat
	new file:   old code/SA-peaks.py
	new file:   old code/absorption imaging auto.py
	new file:   old code/absorption imaging.py
	new file:   old code/beat_note.py
	new file:   old code/equations-RI.py
	new file:   old code/fluo_calibration.py
	new file:   old code/fluo_number.py
	new file:   old code/fluorescence imaging.py
	new file:   old code/libDAQmx.py
	new file:   old code/libphys.py
	new file:   old code/plot_data_from_array.py
	new file:   old code/plot_data_from_bitmap.py
	new file:   old code/plot_data_from_txt(incomplete).py
	new file:   old code/probe8_profile.txt
	new file:   old code/probe8_profile.txt~
	new file:   old code/pump8_profile.txt
	new file:   old code/pump8_profile.txt~
	new file:   old code/pz-201308200000.dat
	new file:   old code/realtime.py
	new file:   old code/special settings code/3D-light-parallel-proj.tiff
	new file:   old code/special settings code/Pattern-3D-for_Cover-GL-settings.py
	new file:   old code/special settings code/Pattern-generate_centred_frame-nice patterns settings.py
	new file:   old code/special settings code/absorption imaging.py
	new file:   old code/special settings code/press_release_GL.jpg
	new file:   old code/special settings code/press_release_GL.tiff
	new file:   old code/talbot.py
	new file:   old code/test_mesh.py
	new file:   old code/tof.py