David Montenegro's patch for bugs #95551, #124367.

[Derek Atkins]

Log Message:
-----------
David Montenegro's patch for bugs #95551, #124367.

	* src/report/standard-reports/account-summary.scm:
	  Rewrote account summary report. Now has fields for
	  more account metadata. Properly handles mixed
	  asset/liability subaccounts.
	* src/report/standard-reports/html-acct-table.scm:
	  Added functionality (account-type &c) and bug fixes
	  (lone zb subtotals, spurious 'recursive-bal, typos)
	  needed to make the new account-summary.scm work.

Modified Files:
--------------
    gnucash:
        ChangeLog
    gnucash/src/report/report-system:
        html-acct-table.scm
    gnucash/src/report/standard-reports:
        account-summary.scm