Added keysPrefix property.

examples/test/build.gradle

@@ -3,7 +3,7 @@ buildscript {
         mavenLocal()
     }
     dependencies {
-       classpath "net.thauvin.erik.gradle:semver:0.9.1"
+       classpath "net.thauvin.erik.gradle:semver:0.9.1-beta"
     }
 }
 
@@ -32,6 +32,6 @@ run {
 
 semver {
     properties = "test.properties"
-    setKeysPrefix("test.")
-    buildMetaKey = "another"
+    keysPrefix = "test."
+    buildMetaKey = "meta"
 }

examples/test/test.properties

@@ -1,7 +1,7 @@
 #Generated by the Semver Plugin for Gradle
-#Fri Jun 29 20:53:42 PDT 2018
+#Sat Jun 30 15:54:02 PDT 2018
 test.major=1
-test.prerelease=
-test.patch=2
-another=
+test.prerelease=beta
+test.meta=007
+test.patch=3
 test.minor=0