#122 - Updated source version to 10 (maximum supported by Gradle at t… (#123)

* #122 - Updated source version to 10 (maximum supported by Gradle at the current time) and target to 8.

Author: gigaSproule

build.gradle

@@ -31,8 +31,8 @@ idea {
 
 group = 'com.benjaminsproule'
 
-sourceCompatibility = JavaVersion.VERSION_1_7
-targetCompatibility = JavaVersion.VERSION_1_7
+sourceCompatibility = JavaVersion.VERSION_1_8
+targetCompatibility = JavaVersion.VERSION_1_8
 
 task createClasspathManifest {
     def outputDir = file("$buildDir/$name")