Change log:
051a4cf Upgrade dependencies; prepare fpr release
02b1947 GH-3199: Fix fail back with Long.MAX_VALUE
61747e5 Upgrade to Gradle 4.10.2 to support Bamboo build
fa0caeb GH-3199: FailoverClientCF - Fail Back Option
7ced027 (sirimamilla/4.3.x) Fix TcpConnectionFactory FactoryBean
127f683 GH-3090: Add logout() to FtpSession.close()`
8890816 GH-3076: NioFileLocker: add file existence check
9c24e16 GH-3083: Support @Header with dotted literals
a63f197 Fix JavaDocs in the TransformerFactoryUtils