[maven-release-plugin] prepare for next development iteration

@@ -3,10 +3,10 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>pl.itcrowd</groupId>
     <artifactId>youtrack-rest-api</artifactId>
-    <version>1.1.0</version>
+    <version>1.1.1-SNAPSHOT</version>
     <scm>
         <developerConnection>scm:git:https://itcrowd.pl/gitblit/git/OpenSource/youtrack-rest-api.git</developerConnection>
-      <tag>youtrack-rest-api-1.1.0</tag>
+      <tag>HEAD</tag>
   </scm>
     <build>
         <plugins>