Packaging

- Added README.1.5.0 detailing the new custom report configuration
  variables that must be added.
- Added README.1.5.0 to the distribution.
- Added new custom.html documentation.
- Added warning to task.html about the README.1.5.0 changes.

README.1.5.0

@@ -0,0 +1,15 @@
+Task 1.5.0 has a custom reports feature.  Three of the existing task reports
+are no longer implemented in task, and need to be added as custom reports.
+Simply copy the following six lines into your existing .taskrc file.
+
+New task users need not do this - task will create an initial .taskrc file
+on first startup.
+
+
+report.long.columns=id,project,priority,entry,start,due,age,tags,description
+report.long.sort=due+,priority-,project+
+report.list.columns=id,project,priority,due,active,age,description
+report.list.sort=due+,priority-,project+
+report.ls.columns=id,project,priority,description
+report.ls.sort=priority-,project+
+