- Add \brief commands to example docs to show descriptions
- Add an examples page with the \group command
- Link to the examples page from the module index page
- Edit the .qdocconf file
- Edit the .gitignore file to allow pushing changes to examples
- Add a generic thumbnail image for C++ Code Analyzer example

Change-Id: I1a313ae26664ce9fc50ef8962f0facd57dea546b
Reviewed-by: Martin Smith <martin.smith@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>