fixed broken PI layout, not sure why all other files changed
This commit was manufactured by cvs2svn to create tag 'v1_2_0'.
changed code date
modified to refer to version 1.2.0
added Help button to launch sonia wiki in browser
some kinda tweaks
added repick prob and sub passes parameter
some tweaks about the key listener and pause button
fixing error reporting from some task threads
added crude multi-slice stress plot
