Make acquisition engine logging more readable

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14423 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd
Prepend all acquisition engine logging with [AE]

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14424 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd
Log the logical steps of the acquisition engine

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14425 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd
Minor fixup of acquisition engine logging

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14426 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd
Prevent sporadic breakage of display at end of acquisition

The symptom was a NullPointerException but only happened rarely.

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14427 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd