Use properties for sdk version references

Author: developernotes

android-database-sqlcipher/build.gradle

@@ -7,8 +7,8 @@ android {
   buildToolsVersion "26.0.1"
 
   defaultConfig {
-    minSdkVersion 14
-    targetSdkVersion 26
+    minSdkVersion "${minimumAndroidSdkVersion}"
+    targetSdkVersion "${targetAndroidSdkVersion}"
     versionCode 1
     versionName "${clientVersionNumber}"
   }