Ver 1.08

• Adds text-size adjustments,
• generalizes some fixes for particular layout issues,
• allows for further abbreviation of commands (r+10 ts-1) etc,
• and only re-runs automatic layout after commands which require it [c- d=l r+5 o-2 u+ etc], allowing for quicker adjustments to formatting issues which don't affect layout.

Note that the simple command c- is like running OG's built-in Automatic Layout but correcting errors introduced by its known row separation and object separation bugs (ie ensuring that row gaps and node gaps are consistent, and are as specified in the Automatic Layout inspector).

(c+ does the same, but also changes the layout to ensure that there are no dog's leg connectors to single children, and that all parents are symmetrically centered over their child ranges)

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