In the absence of other info, try to find the last die() or warn().
Stop using File::Slurp (the other methods already used Genome::Sys).
Use File::ReadBackwards in our new die/warn method.
Don't slurp the entire output file into memory.
Stop slurping the file in remaining case.

Rework helper functions to assume they get one line at a time.
Typo: ana;yis => analysis.
Run CnView even with empty segments file.

This has been tested on HGG1, cnview cannot run only if the probe
level data is missing.
update error msg
Merge pull request #338 from gatoravi/cnview_update

Cnview update
Merge pull request #306 from tmooney/find_die_messages

Determine Errors: try to find the last die() or warn().
Merge pull request #332 from tmooney/typo_fix

Typo: ana;yis => analysis.