0.6.2

New

• Added support for use_frameworks! for development podspec
• Implemented isEmpty method of QMMemoryStorage protocol for all dependencies

Removed:

• Removed deprecated login method through Twitter Digits

Fixed:

• GitHub issue: _CDAttachment duplicated class, which conflicts with system library. Thanks to Serproger.
• GitHub issue: - [QMAttachmentStoreService method cachedImageForAttachment:] always returns nil. Thanks to haarj.
• Warnings: Block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
• Renamed - [QMChatCache deleteMessageWithDialogID:] with - [QMChatCache deleteMessagesWithDialogID:]