Revert "add threshold_wavelet_1d and make wavelet_layer_1d accept multiple wavelet transforms"

This reverts commit b01c7fdbe019adc6d13ccb5fede912f96df0448d.
actually fix scat_freq bug (mult signal case)
fix data_read error (textscan usage)
fix scattergram toolbox usage (signal)
fix feature_wrapper bug in DSS_Table2_TIMIT_m3
fix bug for length(psi_mask)==1

Conflicts:

	core/wavelet_layer_1d.m
add boundary treatment for spline_filter_bank_1d
Merge branch 'release' of github.com:scattlab/scattlab into release

not sure why these should be conflicts
accept 'theirs' for all

Conflicts:
	core/scat_freq.m
	core/wavelet_layer_1d.m
	display/scattergram.m
	filters/spline_filter_bank_1d.m
	scatutils/concatenate_freq.m