Added a rvm_with_gemset function to lib/rvm.zsh to print out the ruby along with the gemset ex.: ruby-1.9.2@rails3

lib/rvm.zsh

@@ -4,4 +4,15 @@ function rvm_prompt_info() {
   echo "($ruby_version)"
 }
 
+# get the name of the ruby as well as the gemset
+# from http://snipplr.com/view.php?codeview&id=36724
+function rvm_with_gemset {
+  local gemset=$(echo $GEM_HOME | awk -F'@' '{print $2}')
+  [ "$gemset" != "" ] && gemset="@$gemset"
+  # local version=$(echo $MY_RUBY_HOME | awk -F'-' '{print $2}')
+  local version=$(~/.rvm/bin/rvm-prompt s i v)
+  [ "$version" != "" ] && version="$version"
+  local full="$version$gemset"
+  [ "$full" != "" ] && echo "$full"
+}