Further fixes for Android tests on TeamCity

Added support repository to download_android_sdk.xml
Changed the build tools version in testProject to 23.0.1

(trial) Remove platform 22

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/AndroidProject/Android/build.gradle

@@ -9,7 +9,7 @@ dependencies {
 
 android {
     compileSdkVersion 22
-    buildToolsVersion "21.1.2"
+    buildToolsVersion "23.0.1"
 
     sourceSets {
         main.java.srcDirs += 'src/main/java2'

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/AndroidProject/Lib/build.gradle

@@ -10,7 +10,7 @@ dependencies {
 
 android {
     compileSdkVersion 22
-    buildToolsVersion "21.1.2"
+    buildToolsVersion "23.0.1"
 
     defaultConfig {
         minSdkVersion 7

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/AndroidProject/Test/build.gradle

@@ -3,7 +3,7 @@ apply plugin: 'kotlin-android'
 
 android {
     compileSdkVersion 22
-    buildToolsVersion "21.1.2"
+    buildToolsVersion "23.0.1"
 
     sourceSets {
         main.kotlin.srcDirs += 'root/kotlin'