2.0.0

• feature: support for symlinks. (#228)
• feature: support for promises on finalize. (#248)
• feature: addition of symlink method for programmatically creating symlinks within an archive.
• change: emit warning instead of error when stat fails and the process can still continue.
• change: errors and warnings now contain extended data (where available) and have standardized error codes (#256)
• change: removal of deprecated bulk functionality. (#249)
• change: removal of internal _entries property in favor of progress event. (#247)
• change: support for node v4.0+ only. node v0.10 and v0.12 support has been dropped. (#241)