General QML moderization and refactor
See commits for details, but basically:
- Remove "declarative" folder
- Move ECM* declarative creation into libkcups
- Update sources with QML_ELEMENT
- ProcessRunner becomes a Singleton with static functions
- Remove qml import version numbers
To be merged after !62 (merged)
re: #2 (closed), #6 (closed)
Edited by Mike Noe