subplot_grid

This version is suitable for R2014b, without any guarantee or expected performance for lower matlab releases (i.e., it is checked for hgVersion 2, and hgVersion 1 is not supported!).

Saving the figure is now possible, and the colorbar is upgraded

fixed minor irritation. Now, after construction of a subplot_grid object, the current axes is set to the first subplot, instead of being left undefined

1. possibility to save a .fig file and load without errors
2. very flexible row and column titles on all 4 sides.
3. different resizing scheme (more robust)
4. minor bugfixes

very stupid bug fixed (seen when only plotting a single axes (subplot_grid(1) crashed)

see 'help subplot_grid'

-Bugfixes
-speed improvement (thanks to Dan Kominsky)
-added method COLORBAR
-added possibility to link axes on zooming in

1: Matched the legend style to MATLAB
2: Bugfix in the legend placement
3: Added correct handling of axes deletion.
4: Added COLORBAR method.
5: Added SET_PADDING which allows control over the amount of whitespace between axes

some bugfixes on legend placements, and the correct working with zooming in and out.