Merge pull request #202 from egonzale/manual_en_v2.0

Updates to 7.3 and 7.4
Tidying early chapters, replaced screenshots module 7
file path corrections and added two answers screen shots
Text corrections, confirming localisation, replaced all settings/layer properties panel screen shots, updated module 16
Merge pull request #203 from egonzale/manual_en_v2.0

updates to module 9
Merge pull request #7 from qgis/manual_en_v2.0

update from Manual en v2.0