New Report - timesheet

- Added new timesheet report framework
- Began adding logic pseudo-code
- Added some documentation

html/advanced.html

@@ -219,6 +219,17 @@ Year Month     Added Completed Deleted Net
                   number decreased as more task were completed than added.
                 </p>
 
+                <strong>% task ghistory</strong>
+                <p>
+                  The ghistory report is a "graphical" version of the history
+                  report.  It shows a colored bar graph and legend.
+                </p>
+
+                <strong>% task timesheet</strong>
+                <p>
+                  ???
+                </p>
+
                 <strong>% task calendar</strong>
                 <p>
                   This report shows a calendar of the current month, with any task