Chris Shoemaker's typo-fix patch.

[Derek Atkins]

Log Message:
-----------
Chris Shoemaker's typo-fix patch.

	* src/engine/qofbook.h:
	* src/engine/qofid.h:
	  general fixed typos and comments

Modified Files:
--------------
    gnucash:
        ChangeLog
    gnucash/src/engine:
        qofbook.h
        qofid.h