Java SDK: new files for v1.4
Adding infos for 1.4.0
Merge pull request #111 from daschl/1.4

1.4 java
Java SDK: edit release notes and new async operations section
Adding 1.4.0 GA release notes.
libcouchbase: Update homebrew instructions
Merge pull request #112 from daschl/1.4-2

Adding 1.4.0 GA release notes.
Merge pull request #113 from mnunberg/stage

libcouchbase: Update homebrew instructions
Java SDK: release version 1.4.0
archive-index: add Java SDK 1.3 to archive list