David Montenegro's General Ledger patch (bug #155268).

[Derek Atkins]

Log Message:
-----------
David Montenegro's General Ledger patch (bug #155268).

        * src/report/standard-reports/general-ledger.scm:
	  src/report/standard-reports/standard-reports.scm:
          src/report/standard-reports/Makefile.am:
          Added General Ledger report, a Transaction Report
          with a pre-set set of options.

	* src/report/standard-reports/transaction.scm:
          FIXME - All accounts now selected by default, avoids
          confusing error message. Error message also clarified.
          Fixed "Totals" option so that it works.

        * src/report/standard-reports/balance-sheet.scm:
        * src/report/standard-reports/equity-statement.scm:
        * src/report/standard-reports/trial-balance.scm:
        Updated comments

	* Fixes #144268

Modified Files:
--------------
    gnucash:
        ChangeLog
    gnucash/src/report/standard-reports:
        Makefile.am
        balance-sheet.scm
        equity-statement.scm
        standard-reports.scm
        transaction.scm
        trial-balance.scm

Added Files:
-----------
    gnucash/src/report/standard-reports:
        general-ledger.scm