Update IDE configurations in response to reflect recent args4j update.

Summary:

Test Plan:
Loaded project in Eclipse: it works fine.
diff --git a/.classpath b/.classpath
index 8a3f395..b2b83c6 100644
--- a/.classpath
+++ b/.classpath
@@ -4,7 +4,7 @@
 	<classpathentry excluding="**/BUCK" kind="src" path="third-party/java/aosp/src"/>
 	<classpathentry excluding="**/BUCK|**/testdata/**" kind="src" path="test"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
-	<classpathentry kind="lib" path="lib/args4j.jar"/>
+	<classpathentry kind="lib" path="lib/args4j-2.0.26.jar"/>
 	<classpathentry kind="lib" path="lib/cglib-nodep-2.2.jar"/>
 	<classpathentry kind="lib" path="lib/ddmlib-r21.jar"/>
 	<classpathentry kind="lib" path="lib/easymock-3.0.jar"/>
diff --git a/.idea/libraries/buck_lib.xml b/.idea/libraries/buck_lib.xml
index 957de19..e259fac 100644
--- a/.idea/libraries/buck_lib.xml
+++ b/.idea/libraries/buck_lib.xml
@@ -4,7 +4,7 @@
       <root url="jar://$PROJECT_DIR$/lib/jackson-annotations-2.0.5.jar!/" />
       <root url="jar://$PROJECT_DIR$/lib/jackson-core-2.0.5.jar!/" />
       <root url="jar://$PROJECT_DIR$/lib/jackson-databind-2.0.5.jar!/" />
-      <root url="jar://$PROJECT_DIR$/lib/args4j.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/args4j-2.0.26.jar!/" />
       <root url="jar://$PROJECT_DIR$/lib/jsr305.jar!/" />
       <root url="jar://$PROJECT_DIR$/lib/ini4j-0.5.2.jar!/" />
       <root url="jar://$PROJECT_DIR$/lib/ddmlib-r21.jar!/" />
diff --git a/.idea/libraries/test_lib.xml b/.idea/libraries/test_lib.xml
index b43c710..1f0161f 100644
--- a/.idea/libraries/test_lib.xml
+++ b/.idea/libraries/test_lib.xml
@@ -1,7 +1,7 @@
 <component name="libraryTable">
   <library name="test-lib">
     <CLASSES>
-      <root url="jar://$PROJECT_DIR$/lib/args4j.jar!/" />
+      <root url="jar://$PROJECT_DIR$/lib/args4j-2.0.26.jar!/" />
       <root url="jar://$PROJECT_DIR$/lib/cglib-nodep-2.2.jar!/" />
       <root url="jar://$PROJECT_DIR$/lib/easymock-3.0.jar!/" />
       <root url="jar://$PROJECT_DIR$/lib/jackson-core-2.0.5.jar!/" />