(PE-3769) Build source jars and use explicit JDK target version
Bump jvm-ca version to 0.1.5
Remove jdk6 from travis test matrix
Correct the path to the clojure source code for the sources jar
Merge pull request #6 from cprice404/maint/master/PE-3769-source-jars-and-explicit-jdk-target

(PE-3769) Build source jars and use explicit JDK target version