Fixes issue where we are unable to get the author email on triggers

Sometimes the GitHub API throws a NPE when attempting to get the user for
a PR; this information is optional and shouldn't cause the trigger to
fail.
Fixed a typo
Issue #100: ability to include log details in commit comments
Merge pull request #88 from valdisrigdon/handle_owner_email_npe

Fixes issue where we are unable to get the author email on triggers
Merge pull request #99 from Mailaender/patch-1

Fixed a typo
use the StringBuilder for whole message
Do not change behaviour without notice. Set default to not use logExcerpt
Merge branch 'logExcerpt'