Fix non-standard \since tag in QGeoAreaMonitorInfo

Change-Id: I9d4a6c7341a8ea468d7ecfc5c55b36ee434d66e4
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Updated the request URL to use https instead of http

The request to search the photos on flickr needs SSL,
without which the search fails to get the required results.

Also updated the example's GridDelegate to scale the photos
based on pixelDensity. Otherwise the photos look too small
on high DPI devices.

Task-number: QTBUG-37203
Change-Id: I5f3385e99868bdfae6e62d1ade5acea2ac536b65
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>
Doc: Applied title case to section1 titles

Change-Id: I7ad07daac92e1af8c7daa4f59b948692c03a85e3
Task-number: QTBUG-41250
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Merge remote-tracking branch 'origin/5.4' into dev

Change-Id: I0ae129249ba5b21c5156ff1766e0fd124958c840