Add logentries to all files.
Add logger.
Add more log statements.
Small fix.
Add log statement when conversion is successful.
Modify log statement.
Add logger to more files and small cleanup.
Fix import issue.
Fix import issue.
Typo fix.
Add admins for error emails.
Code cleanup.
Add request information to internal error email.
Change logger in doc to pdf converter.
Merge pull request #36 from Aplopio/add-logger

Add logger and other cleanup.