* api.js: HttpError now preserves more of original error info
* Allow invalid conversation to be added to ConversationController
If a number we don't believe is valid comes in as part of a group, we
fall apart. We event prevent display of that conversation. Because we
have 'isValid()' protections in place for the places we create contacts
from user input in desktop (the search bar), we can temporarily add an
invalid contact to our collection (not saving it to the database) to
unblock this group scenario.
Still investigating what kind of phone number is valid in a mobile app
but not valid for us.
* Finish the debuggable error support
* Fix logging in the case of an invalid number
ce01eb7913