Status bar description
Info on Print Composer Options
Update navigation tools
Corner radius for rectangle
Update Composition tab settings
World file for export as image
Add Size and position section with new options
Atlas update and minor fixes
Rotation in common properties
removed modeler image
changed wrong image in processing chapter of training manual
Add new entries to main table
Fix for main table
Minor fixes to Processing manual
Minor update to Processing manual
Cosmetic language updates to user_manual/preamble
added plugin structure

Signed-off-by: Werner Macho <werner.macho@gmail.com>
Added links to download the training manual sample data
Merge remote-tracking branch 'upstream/master'
Copyediting review of user_manual/introduction/