When suggestions are made, exit with exit-code 1

Adds gitignore for housekeeping

.gitignore

@@ -0,0 +1,13 @@
+.*.swp
+/target
+/lib
+/classes
+/checkouts
+pom.xml
+pom.xml.asc
+*.jar
+*.class
+.lein-deps-sum
+.lein-failures
+.lein-plugins
+.lein-repl-history

src/leiningen/kibit.clj

@@ -5,6 +5,8 @@
   [project & args]
   (let [kibit-project '{:dependencies [[jonase/kibit "0.0.9-SNAPSHOT"]]}
         paths (or (:source-paths project) [(:source-path project)])
-        src `(kibit.driver/run '~paths ~@args)
+        src `(kibit.driver/external-run '~paths ~@args)
         req '(require 'kibit.driver)]
-    (eval-in-project kibit-project src req)))
+    (try (eval-in-project kibit-project src req)
+         (catch Exception e
+           (throw (ex-info "" {:exit-code 1}))))))