ASIdiSPIM: fixed single-sided acquisition bug and improved handling if acquisition is stopped in middle

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14293 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd
git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14294 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd