Added Gradle build file.

build.gradle

@@ -0,0 +1,20 @@
+apply plugin: 'groovy'
+apply plugin: 'application'
+
+group = 'com.jdblabs'
+
+mainClassName = 'com.jdblabs.dbmigrate.DbMigrate'
+
+dependencies {
+  compile localGroovy()
+  compile 'ch.qos.logback:logback-classic:1.1.3'
+  compile 'ch.qos.logback:logback-core:1.1.3'
+  compile 'com.jdbernard:jdb-util:4.4'
+  compile 'com.offbytwo:docopt:0.6.0.20150202'
+  compile 'com.zaxxer:HikariCP:2.4.3'
+
+  testCompile 'junit:junit:4.12'
+
+  runtime 'com.h2database:h2:1.4.185'
+  runtime 'org.postgresql:postgresql:9.4.1207.jre7'
+}