Version 0.8.3 release

Full Changelog

Implemented enhancements:

• README not complete #88
• authCallback must accept TokenDetails or token strings #34
• PaginatedResult#isLast method missing #33

Fixed bugs:

• A post-suspend clean connection removes all channels instead of moving them to DETACHED #133
• Reauthentication on external URLs #92
• Attach CompletionListener #84
• Implicit attach on Publish or Subscribe #45

Merged pull requests:

• Detach on suspend #146 (paddybyers)
• Header X-Ably-Lib (RSC7b) #143 (VOstopolets)
• Ensure interoperability with other libraries over JSON. #140 (tcard)
• Update README.md #138 (hauleth)
• Ensure that messages with invalid data type are rejected. #137 (tcard)
• Add messages encoding fixtures test. #136 (tcard)
• Ensure graceful handling of DETACH and DISCONNECT. #131 (tcard)
• Proxy support #123 (paddybyers)
• RTN17 #122 (gokhanbarisaker)
• Avoid stalled state from previous connection when reusing Realtime. #117 (tcard)
• AuthOptions javadoc enhancements and testcases #116 (gokhanbarisaker)
• Add implicit attach test cases for channel publish and subscribe #115 (gokhanbarisaker)
• Add isLast API to PaginatedResult #111 (gokhanbarisaker)
• Add CompletionListener to Channel's attach API #108 (gokhanbarisaker)