Added PointClient class and activity indicator in image page

The PointClient class sends request to server, parses the json file in
the reply, and updates the local db file with data from json file.
Activity indicator displays when PointClient is processing.
fixed unrecognized QNetworkAccess
URL can now be used for images
URL can now be used for images
URL can now be used for images
URL can now be used for images
URL can now be used for images
URL can now be used for images
URL can now be used for images
Louis merge into master fix