Added MultiDex support so the app runs on api level 19; Fixed small bug in google maps showLocation method

app/build.gradle

@@ -9,8 +9,9 @@ android {
         applicationId "org.deke.risk.riskahead"
         minSdkVersion 19
         targetSdkVersion 26
-        versionCode 49
-        versionName "3.1.5"
+        versionCode 50
+        versionName "3.1.6"
+        multiDexEnabled true
     }
     buildTypes {
         release {
@@ -41,6 +42,7 @@ repositories {
 dependencies {
     implementation fileTree(dir: 'libs', include: 'Parse-*.jar')
 
+    implementation 'com.android.support:multidex:1.0.3'
     implementation 'com.facebook.android:facebook-android-sdk:4.31.0'
     implementation('com.twitter.sdk.android:twitter-core:3.3.0@aar') {
         transitive = true