Make svnkit optional

See gh-99

pom.xml

@@ -44,7 +44,7 @@
  		<dependency>
 			<groupId>org.springframework.security</groupId>
 			<artifactId>spring-security-rsa</artifactId>
-			<version>1.0.0.M2</version>
+			<version>1.0.0.RELEASE</version>
 		</dependency>
 		<dependency>
 			<groupId>org.eclipse.jgit</groupId>

spring-cloud-config-server/pom.xml

@@ -45,15 +45,16 @@
 			<groupId>org.yaml</groupId>
 			<artifactId>snakeyaml</artifactId>
 		</dependency>
+        <dependency>
+            <groupId>org.tmatesoft.svnkit</groupId>
+            <artifactId>svnkit</artifactId>
+            <optional>true</optional>
+        </dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
-        <dependency>
-            <groupId>org.tmatesoft.svnkit</groupId>
-            <artifactId>svnkit</artifactId>
-        </dependency>
 	</dependencies>
 
 	<properties>