ref #27 -new gradle and sdk version

- added faster bpm estimation by using multiple windows now
- implemented a simple z score based outlier detection
- some ugly heuristics to prefend to many -1 on the screen
NOTE: this is a very unstable version of the code, very protoype

android/ConductorsPhone/build.gradle

@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.1.2'
         
 
         // NOTE: Do not place your application dependencies here; they belong

android/ConductorsPhone/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Tue Dec 19 11:59:51 CET 2017
+#Fri Apr 27 11:02:05 CEST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip