Related to JIRA PM-160
Related to JIRA PM-160

Edited comments.
Added legends to the summary.
Changed how the error messages are displayed in case of failure.
.err and .out files will have same filename
Displays the output of .out and .err files if -v option is set .
Displays the path to  .out and .err files and sets -keep option if -v option is not set.

pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus,pegasus-isi/pegasus