Chris Shoemaker's patch: Tweaks to kvp_frame.h.

[Derek Atkins]

Log Message:
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	Chris Shoemaker's patch: Tweaks to kvp_frame.h.
	* Tweaks to kvp_frame.h
	  - fix typos
	  - make #define aliases for asymetric getters/setters
	  - tweak comments
	  - comment on and discourage use of kvp_value_get_glist

Tags:
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gnucash-gnome2-dev

Modified Files:
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    gnucash:
        ChangeLog
    gnucash/src/engine:
        kvp_frame.h