Merge pull request #635 from wagnerand/master

Fix for https://github.com/protz/GMail-Conversation-View/issues/632
Cleanup contact.js.

- Remove support for the Thunderbird Contacts addon, it's dead now.
- Move code to Services.jsm.
- Honor when "prefer display name over header name" is unchecked, useful for new
github notifications for which there must be a card in the address book (in
order to display html) but for which we don't want to cache the contact name.
Fix the broken PDF viewer.

- Arcane changes in XPConnect broke my code. I don't know why, but Iterator was
upset by the objects I'm sending accross the chrome/content boundary. Found a
fix.
Bump PDF.js version.
Revert bad clipboard fix.
Fix the assistant for newer versions of Gecko.

- A badly-scoped function declaration was causing weird errors, a proper
let-binding fixed it.
Add UI for the new stdlib fcc option.

- Add a preference.
- Add the corresponding UI in the options.
- Add the hook in stub.compose-ui.js
Show warning and use PGP/MIME with attachments

If we send a message with attachments using inline-PGP and quick reply,
attachments are not be encrypted. In the case we show warning message
and we can switch to PGP/MIME.
Merge pull request #645 from shirosaki/enigmail

Show warning and use PGP/MIME with attachments
Bump stdlib and fix standalone composition window.
Bump stdlib.
Missing line in chrome.manifest
Cherry-pick top -> ttop strange fix.
Don't commit to a specific version number in the setup assistant.
#662: Safe guard null doCcList/doBccList in changeComposeFields.
Merge pull request #663 from nauhygon/master

Patch for issue #662
Fix Gecko breakage.
Merge branch 'master' of github.com:protz/GMail-Conversation-View
Fix broken display of messages.

This is due by the recent fix in bug 80855 that changed some function names...
Fix security info display for recent Enigmail

PGP/MIME decryption has been rewritten in Enigmail 1.4.6, which causes to
show wrong security info for selected message. Setting selected
message's uri on select fixes this issue.