(dev/core#1944) Add new columns to mailing summary report

[yashodha]

Overview

Add new columns to mailing summary report

• Sender name
• Sender email

Before

No sender columns.

After

Sender name and email columns added.

[civibot]

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[demeritcowboy]

• General standards
  • [r-explain] PASS
  • [r-user] PASS
  • [r-doc] PASS
  • [r-run] PASS
    • I don't know if it's been like this for a while, but I see the same on dmaster.demo so just mentioning it: The mailing report and also the find mailings screen seem to confuse "mailing name" and "subject". But it also lists an entry that has the right mailing name too.

• Developer standards
  • [r-tech] PASS
  • [r-code] PASS
  • [r-maint] ?
  • [r-test] PASS

[demeritcowboy]

Ignore the name/subject comment. It only happens when using smtp setting redirect to database, which kind of makes sense since it makes fake mailing job entries which here duplicate the real mailing.