Make MCOAccountValidator init method available (MailCore#1736)

Merge pull request MailCore#1343 from serjepatoff/master

2 new error codes

Merge pull request MailCore#1277 from pointum/master

OS X does not support bitcode.

prevent local reference table overflow - part 2

Build mailcore2

Support for short values

Updated settings

Fixed MailCore#230: fixed AbstractMessagePart::partForUniqueID() and …

…case when all required data have not been retrieved yet htmlForAbstractMessagePart()

Fixed MailCore#202: Fixed decoding of modified UTF7

build scripts based on a fixed version of libetpan