- Upgraded Android Studio version.

README.md

@@ -6,7 +6,7 @@ Motivated by need for a secure SIP user agent for Android that does not depend o
 
 After cloning the project, generate static libraries and include files to distribution directory using master branch of https://github.com/juha-h/libbaresip-android.
 
-Then in Android Studio 3.5.1:
+Then in Android Studio 3.5.2:
 
 - Open an existing Android Studio project
 

build.gradle

@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.1'
+        classpath 'com.android.tools.build:gradle:3.5.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files