Added static analyzes to build script

.travis.yml

@@ -35,4 +35,4 @@ matrix:
         - flutter build ios --no-codesign
         - flutter build ios --no-codesign
 cache:
 cache:
   directories:
   directories:
-    - $HOME/.pub-cache
+    - $HOME/.pub-cache
\ No newline at end of file

example/android/build.gradle

@@ -6,7 +6,7 @@ buildscript {
     }
     }
 
 
     dependencies {
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.3'
+        classpath 'com.android.tools.build:gradle:3.1.4'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
     }
 }
 }