Updated gradle build, allow to configure from file.

client/Android/Studio/build.gradle

@@ -1,4 +1,37 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
+Properties properties = new Properties()
+File file = new File('release.properties')
+if (file.canRead()) {
+    properties.load(new FileInputStream(file))
+}
+
+def getVersionName = { ->
+    def stdout = new ByteArrayOutputStream()
+    exec {
+        commandLine 'git', 'describe', '--tags'
+        standardOutput = stdout
+    }
+    return stdout.toString().trim()
+}
+
+ext {
+    versionCode = properties.get('VERSION', "10").toInteger()
+    minSdk = properties.get('MIN_SDK', "14").toInteger()
+    targetSdk = properties.get('TARGET_SDK', "25").toInteger()
+    compileSdk = properties.get('COMPILE_SDK', "25").toInteger()
+    buildToolsVersion = properties.get('BUILD_TOOLS', "25.0.2")
+    versionName = properties.get('VERSION_NAME', getVersionName())
+
+    println '----------------- Project configuration -------------------'
+    println 'VERSION:      ' + versionCode
+    println 'MIN_SDK:      ' + minSdk
+    println 'TARGET_SDK:   ' + targetSdk
+    println 'COMPILE_SDK:  ' + compileSdk
+    println 'BUILD_TOOLS:  ' + buildToolsVersion
+    println 'VERSION_NAME: ' + versionName
+    println '-----------------------------------------------------------'
+}
+
 buildscript {
     repositories {
         jcenter()