James Strandboge's "Easy Invoice" patch.

[Derek Atkins]

Log Message:
-----------
James Strandboge's "Easy Invoice" patch.

	* src/business/business-reports/Makefile.am:
	* src/business/business-reports/business-reports.scm:
	* src/business/business-reports/easy-invoice.scm:
	  add "easy invoice" code.
	* src/business/business-utils/business-prefs.scm:
	* src/business/business-utils/business-utils.scm:
	  add preferences for the business ID, used in the easy invoice.
	* src/report/stylesheets/Makefile.am:
	* src/report/stylesheets/stylesheets.scm:
	* src/report/stylesheets/stylesheet-easy.scm:
	  add "easy stylesheet" code.

Modified Files:
--------------
    gnucash:
        ChangeLog
    gnucash/src/business/business-reports:
        Makefile.am
        business-reports.scm
    gnucash/src/business/business-utils:
        business-prefs.scm
        business-utils.scm
    gnucash/src/report/stylesheets:
        Makefile.am
        stylesheets.scm

Added Files:
-----------
    gnucash/src/business/business-reports:
        easy-invoice.scm
    gnucash/src/report/stylesheets:
        stylesheet-easy.scm