Added JEKYLL_EDITOR variable

This will replace the default $EDITOR used in the Jekyll plugin
diff --git a/template/jekyllconfig.template.bash b/template/jekyllconfig.template.bash
index e470518..291bf85 100644
--- a/template/jekyllconfig.template.bash
+++ b/template/jekyllconfig.template.bash
@@ -15,3 +15,7 @@
 # Same rules as above. Can be HTML, textile, or markdown
 
 MARKUPS="markdown textile"
+
+# If you want to use a different editor for Jekyll, change the value of this variable
+
+JEKYLL_EDITOR="$EDITOR"