Only import coax if a spec is provided.  Set default R0 if now spec
defined.
Fix typo in imports
Fix missing import
Add method to set global variable msa in trace
Change trace import and set msa variable in trace using trace.SetMsa
Fix marker to be on phase trace when phase trace near
Move processing after ref picked from msapy to ref
Move processing after ref picked from msapy to ref.  Fix mode to come up
in SA or SA_TG mode properly
Add info at start of file to work under linux.  Change file mode to unix
Fix so window shows up on the screen
Fix type in imports
commit to fix line endings