Add sources to jar; update to v0.6.1

Author: kylecorry31

build.gradle

@@ -1,5 +1,5 @@
 group 'com.kylecorry.geometry'
-version '0.6'
+version '0.6.1'
 
 apply plugin: 'java-library'
 
@@ -12,3 +12,7 @@ repositories {
 dependencies {
     testCompile group: 'junit', name: 'junit', version: '4.11'
 }
+
+jar {
+    from sourceSets.main.allSource
+}