Worked over gui: default parameters and tab order have been changed.
Worked over gui again and changed default values in controls to be something that can be meaningfully optimized.
Added submodule decompose_imf_notes.
removed submodule decompose_imf_notes in order to fix everything.
Added submodule decompose_imf_notes again. Now everything seems to work.
updated submodule.
Simplified console output of application. Only the step and the
value of the cost function are written.
Changes meaning of several spinboxes in the gui.

Sigma, tau and nodes and their deviations are not given in samples
anymore but in the unit of the inveral in which the target function
is defined. The calculation has been changed. The default values in
the gui have been changed accordingly.
updated submodule.
updated a submodule.