[Qgis-community-team] update ManualTasks page for manual update to 1.5

[Otto Dassau]

Hi,

i updated the changelog list in the wiki, so we have a better idea, what
features should be described in the 1.5 manual. Please add or remove items,
if i did sth. wrong.

http://www.qgis.org/wiki/ManualTasks

 Otto