Publish all generated Java bytecode jar archives

Previously we were only publishing source archives.  This fixes
wala/WALA#326 if I got everything right on the first try.  More likely
is that we will need a few rounds of revision before it's all doing
what it should.  For example, we may need to customize aspects of the
Gradle-generated "*.pom" files as described at
<https://docs.gradle.org/current/userguide/publishing_maven.html#sec:identity_values_in_the_generated_pom>
and
<https://docs.gradle.org/current/userguide/publishing_maven.html#sec:modifying_the_generated_pom>.

build.gradle

@@ -77,6 +77,12 @@ subprojects { subproject ->
 
 	jar.manifest.from('META-INF/MANIFEST.MF')
 
+	publishing.publications {
+		mavenJava(MavenPublication) {
+			from components.java
+		}
+	}
+
 	task afterEclipseBuildshipImport(dependsOn: processTestResources)
 	task prepareIntelliJIDEA