Fix iOS 8 support and use libc++ instead of libstdc++
connection of an imap operation is now set when it's started (#783)
Fixed build issue
Added urgent accessor on ObjC API
Fixed crash on disconnection
Fixed addressWithIMAPAddress for drafts with bad address in to/cc/bcc fields
Add sdk 7.1 and 8 to build-mailcore2-ios
Merge branch 'master' of https://github.com/MailCore/mailcore2 into iOS8AndLibCpp
Recognize multipart/signed content type
Merge pull request #807 from gnachman/iOS8AndLibCpp

Add support for building against iOS 8 SDK. Use libc++ instead of libstdc++.
Changed build version
build for libc++
Merge branch '783-urgent'
Removed commented code
Changed instructions for iOS
Make example use libc++
Fixed #792: show calendar invitation properly when it's sent by exchange
Implemented -[MCOAddress isEqual:]
Updated to libetpan 35c5c939fe4d5d7072b1629638ee96f2e6a4bbd1
appending nil will not crash (#812)