Stop relying on Gerrit core for commons-io definition

Gerrit core stopped providing a definition for commons-io

  04807b67fc33d1a4abccb6172df534c3b34efc00

. As its-rtc is relying on commons-io, we need to provide it on our
own.

Change-Id: I67190a30ee84d30af78b3c7e6cf4bf6a5e063d70
diff --git a/BUCK b/BUCK
index 52612c3..e21b5d9 100644
--- a/BUCK
+++ b/BUCK
@@ -14,13 +14,13 @@
   deps = [
     ':its-base_stripped',
     '//plugins/its-rtc/lib:commons-logging',
+    '//plugins/its-rtc/lib:commons-io',
   ],
   provided_deps = [
     '//lib:gson',
     '//lib/commons:codec',
     '//lib/httpcomponents:httpclient',
     '//lib/httpcomponents:httpcore',
-    '//lib/commons:io',
   ],
 )
 
diff --git a/lib/BUCK b/lib/BUCK
index a197b1b..c6a75ea 100644
--- a/lib/BUCK
+++ b/lib/BUCK
@@ -1,6 +1,13 @@
 include_defs('//lib/maven.defs')
 
 maven_jar(
+  name = 'commons-io',
+  id = 'commons-io:commons-io:1.4',
+  sha1 = 'a8762d07e76cfde2395257a5da47ba7c1dbd3dce',
+  license = 'Apache2.0',
+)
+
+maven_jar(
   name = 'commons-logging',
   id = 'commons-logging:commons-logging:1.2',
   sha1 = '4bfc12adfe4842bf07b657f0369c4cb522955686',