Merge pull request #193 from upgradingdave/small-fix-ensure-enabled-dir-exists

Create plugins/enabled directory if it doesn't already exist
diff --git a/lib/helpers.bash b/lib/helpers.bash
index e1787fe..b99ae3d 100644
--- a/lib/helpers.bash
+++ b/lib/helpers.bash
@@ -277,6 +277,8 @@
             return
         fi
 
+        mkdir -p $BASH_IT/$subdirectory/enabled
+
         ln -s $BASH_IT/$subdirectory/available/$plugin $BASH_IT/$subdirectory/enabled/$plugin
     fi