allow release from HEAD

Author: abersnaze

Diff for: build.gradle

@@ -12,3 +12,13 @@ dependencies {
     testCompile 'org.mockito:mockito-core:1.8.5'
 }
 
+// support for snapshot/final releases with the various branches RxJava uses
+nebulaRelease {
+    addReleaseBranchPattern(/\d+\.\d+\.\d+/)
+    addReleaseBranchPattern('HEAD')
+}
+
+if (project.hasProperty('release.useLastTag')) {
+    tasks.prepare.enabled = false
+}
+