wrap documents and do some items from mones' MANUAL-TODO:
* manual/account.xml
4.1. = fix tabname references to <quote>tabname</quote>
4.2. = fix "xxx" and 'xxx' items to <quote>xxx</quote>
* manual/faq.xml
1.1. = mentioned options don't match UI
Add information about the 'Never send Return Receipts'
option
* manual/handling.xml
6.2. = Mentions Extended symbols button, but now is
named Information
6.3. = Mentions ... button, which is now Edit
* manual/glossary.xml
* manual/account.xml
* manual/fr/glossary.xml
* manual/fr/account.xml
added glossary section and references/links related to the Face custom header.
