issue 424 : textual output small fix

[shireenf-ibm]

#424

• adding new line to textual outputs that did not have (connlist + diff);
• tests of list with exposure-analysis (with non empty result) had new line at the end
• added new line to case of empty exposure analysis section (test run with --exposure but there is no exposure)

[adisos]

added few comments.
please also check md,csv output

[shireenf-ibm]

added few comments. please also check md,csv output

csv is good
added new line at the end of md with connlist output (with exposure there is a new line at the eof)