[#63] Provide buffer size to tools.reader/indexing-push-back-reader

This is necessary on newer versions of c.t.r to prevent "Pushback buffer
overflow"

Fixes #60

Author: plexus

.travis.yml

@@ -1,9 +1,7 @@
 language: clojure
-lein: lein2
-before_script:
-  - lein2 all deps
-script: lein2 all midje
+script: lein all midje
 jdk:
   - openjdk7
   - oraclejdk7
+  - openjdk8
   - oraclejdk8

src/rewrite_clj/reader.clj

@@ -178,4 +178,4 @@
   (-> (io/file f)
       (io/reader)
       (PushbackReader. 2)
-      (r/indexing-push-back-reader)))
+      (r/indexing-push-back-reader 2)))