cli: avoid blocking at the end due to left over threads

Sometimes the CLI ends so quickly that not all the "quick start" threads are done initialising,
and they could stay in a weird blocked state.
So ensure it doesn't block the CLI by:
 * only doing the quick start when worthy
 * mark the threads as daemon, to avoid blocking the end of the program
install: add a "Fully stop" option the launcher

Allows to stop the backend easily from the graphical interface
install: add odemis-cycle to the binaries

Sometimes handy to ensure to start a good microscope file
install: fix magnification level in simulator

allows to have fine alignment work on the simulator
gui popup: ensure the popup message always runs in the main thread

Avoids crash when saving a snapshot
Increase a bit the message duration so that it's easier to read the file name