* create QgsMapLayer::LayerFlags for Searchable, Identifiable and Removable
this brings back the information previously saved in the project node back to the layer node
this will allow to embed this information in layer styles
* skip unexisting flag node to avoid setting wrong value for flag
* mark QgsProject::(set)requiredLayers as deprecated
* better API docs
* use new API in current code
* more docs and more old API fixes
* fix bad conversion
* more old API fix
* add missing SIP_OUT
* s/testFlags/testFlag
* fix var name
* adapt project test to test flags
* remove debug calls
* fixeS
Translated objects and tests included:
- [x] layer names
- [x] layer group names
- [x] relation names
- [x] attribute alias (if no alias, then the field translation)
- [x] forms group box titles
- [x] forms sub group box titles
included restructured with QTranslator object.
Updated test-data used for the test.
