Re-enable jarjar for release builds.

Bug: 27175207
Change-Id: I79a2d389fd192bde20305fdcc85c269395b03430
diff --git a/propLoader.gradle b/propLoader.gradle
index 310d313..d3e65cd 100644
--- a/propLoader.gradle
+++ b/propLoader.gradle
@@ -14,9 +14,10 @@
 databindingProperties.androidGradlePluginRepoDir = "${root}/../../${databindingProperties.androidGradlePluginOutRepo}"
 databindingProperties.mavenRepoDir = "${databindingProperties.androidGradlePluginRepoDir}"
 databindingProperties.internalPrebuiltsRepoDir = "${root}/${databindingProperties.internalPrebuiltsRepoName}"
-databindingProperties.runProguard = project.hasProperty('runProguard') && project.getProperty('runProguard').equals("true")
 
-databindingProperties.inReleaseBuild = project.ext.hasProperty('release') && project.ext.release
+databindingProperties.inReleaseBuild = project.hasProperty('release') && project.ext.release == "true"
+
+databindingProperties.runProguard = (project.hasProperty('runProguard') && project.getProperty('runProguard').equals("true"))
 // load version from gradle build file
 apply from: "$root/../buildSrc/base/version.gradle"
 databindingProperties.androidPluginVersion=ext.buildVersion