Updated package, added tests. Fix #1 and #3

Author: sromku

build.gradle

@@ -6,14 +6,6 @@ repositories {
     jcenter()
 }
 
-sourceSets {
-    main {
-        java {
-            srcDirs 'polygon/src'
-        }
-    }
-}
-
 jar {
     baseName = 'polygon'
     version = '1.0.2'

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Sun Jul 02 16:21:29 IDT 2017
+#Sun Jul 02 19:02:22 IDT 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip