ebfret.analysis.hmm.report: added missing 'end'
ebfret.analysis.plot: more efficient histogram plotting

Optionally use state labels (eg viterbi path) instead of
state weights for much faster histogram plots.
ebfret.ui.MainWindow: allow loading of multiple files at once
ebfret.ui.MainWindow.get_signal: fix returned output size

now returns a cell array with same dimension as requested indices
ebfret.ui.MainWindow.refresh: use states for histogram plotting
ebfret.ui.MainWindow.remove_bleaching: 2 changes

1. Deprecate exluding of traces where donor bleaches before acceptor
2. Correctly handle traces where clip.min > 1
ebfret.ui.MainWindow.run_vbayes: allow parallel execution

Now uses multiple cores when matlabpool fired up
ebfret.ui.IndexControl: adjust value when min/max changes