Updated to reflect dylib copy instructions
Fixed crash when a method is scheduled twice to perform after delay. Fixed #149.
Fix for MCMessageBuilder copy constructor

Fix for HTML body being overwritten with text body.
Fixed crash in performMethodAfterDelay. Fixed #149.
Improved dependencies fetching.
Fixed fetch of dependencies.
Implement logging for src/core/
Improved build scripts
Fixed issue when creating symbolic links while links already exist.
Fixed fetch of prebuilt dependencies
Implement IMAP logger. Work in progress on POP and SMTP loggers.
Added prebuilt.list to .gitignore
Logger API for SMTP, POP
Implemented logging API for SMTP, POP and IMAP
Simplified logger C++ API
Added one argument to the operation queue callback. It might be useful when an object owns several queues.