added SAD resolution into account
Revert "small refactoring, session creation is all done in ISPyBClient2 object"

This reverts commit 3a3d45fe7c37a9a2a2391340ec17ca4c4171e8b8.
show info message when collection starts
added keyword argument for get_display_name to return a tuple with (acronym, display_name)
get_default_directory adds a subdir if acronym is present