use https repo for vault

Plugin/pom.xml

@@ -79,9 +79,9 @@
 			<scope>provided</scope>
 		</dependency>
 		<dependency>
-			<groupId>net.milkbowl.vault</groupId>
+			<groupId>com.github.MilkBowl</groupId>
 			<artifactId>VaultAPI</artifactId>
-			<version>1.6</version>
+			<version>1.7</version>
 			<scope>provided</scope>
 		</dependency>
 		<dependency>

pom.xml

@@ -27,7 +27,7 @@
         </repository>
         <repository>
             <id>vault-repo</id>
-            <url>http://nexus.hc.to/content/repositories/pub_releases</url>
+            <url>https://jitpack.io</url>
         </repository>
         <repository>
             <id>ess-repo</id>