Centralise check for debug output

PSR-2 reformat

Enable debug output for failing test

Fix broken test
Comment clearout

Proper thin spaces before French punctuation

Fix phpdocs for addrAppend and addrFormat, fixes #81
Minor code cleanup, remove some local vars

See changelog.

More phpdoc cleanup
Merge branch 'smtp-refactor' of https://github.com/Synchro/PHPMailer into smtp-refactor