AsyncHTTPClient 1.2.0

SemVer Minor

• Connection Pooling (#105, #180, #170, #169, patch credit @adtrevor)
• Support NIO Transport Services (#184, patch credit to @adam-fowler)
• Logging support (#227)
• Implement asynchronous shutdown (#183)
• Adds version to response (#182)

SemVer Patch

• Fixes for code snippets in README and comments (#276, #272, #271, #266, patch credit to @MaxDesiatov)
• Added body length checks and improved flow for body-related header validation (#270, #247, #215, #269, #267, #255, #219)
• Fixes for error propagation (#245, #221)
• Fix location header lookup (#186)
• Improved header names verification (#191, #211, patch credit to @fabianfett)
• Improved handling of socket-based requests (#259, #235, #228, patch credit to @dimitribouniol)
• Programming model fixes (#246, #241)
• Cookie parsing fixes (#210, #208, #207)
• Added default value for queue in .shutdown() (#279, patch credit to @adam-fowler)
• Bad certificate can lead to errSSLHandshakeFail or errSSLBadCert (#236)
• Use SwiftLogNoOpLogHandler from swift-log (#282, patch credit to @adam-fowler)
• The host header should also include the port (#237,, patch credit to @adam-fowler)
• Enable clients to call URLs that include %2F as an escaped backslash (#201, patch credit to @iainsmith)
• Fixes and tests for connection pool (#288, #284, #192, #268, #240, #254, #225, #167)
• Use standard ByteBuffer construction methods (#262)
• Various tests changes (#224, #223, #216)
• Various small changes (#165, #166, #257, #261)
• Various CI fixes (#193, #173, #283)