Updated args4j lib to 2.0.26 version.

Summary:
Updated to the latest args4j version.
Now arguments in format -argname=argvalue are supported.
diff --git a/bin/buck.cmd b/bin/buck.cmd
index af6dc4f..2ffbd08 100644
--- a/bin/buck.cmd
+++ b/bin/buck.cmd
@@ -94,7 +94,7 @@
 set BUCK_JAVA_CLASSPATH=^
 %BUCK_DIRECTORY%\src;^
 %BUCK_DIRECTORY%\build\classes;^
-%BUCK_DIRECTORY%\lib\args4j.jar;^
+%BUCK_DIRECTORY%\lib\args4j-2.0.26.jar;^
 %BUCK_DIRECTORY%\lib\guava-15.0.jar;^
 %BUCK_DIRECTORY%\lib\ini4j-0.5.2.jar;^
 %BUCK_DIRECTORY%\lib\jackson-annotations-2.0.5.jar;^
diff --git a/bin/buck_common b/bin/buck_common
index 8c6f1eb..32b5c96 100755
--- a/bin/buck_common
+++ b/bin/buck_common
@@ -205,7 +205,7 @@
 # because `ant compile` takes much less time to rebuild Buck than `ant jar` does.
 BUCK_JAVA_CLASSPATH="${BUCK_DIRECTORY}/src:\
 ${BUCK_DIRECTORY}/build/classes:\
-${BUCK_DIRECTORY}/lib/args4j.jar:\
+${BUCK_DIRECTORY}/lib/args4j-2.0.26.jar:\
 ${BUCK_DIRECTORY}/lib/ddmlib-r21.jar:\
 ${BUCK_DIRECTORY}/lib/guava-15.0.jar:\
 ${BUCK_DIRECTORY}/lib/ini4j-0.5.2.jar:\
diff --git a/build.xml b/build.xml
index aa76119..f6fe847 100644
--- a/build.xml
+++ b/build.xml
@@ -20,7 +20,7 @@
   <property name="client.dir" value="third-party/nailgun" />
 
   <fileset dir="${lib.dir}" id="buck.jars">
-    <include name="args4j.jar" />
+    <include name="args4j-2.0.26.jar" />
     <include name="ddmlib-r21.jar" />
     <include name="guava-15.0.jar" />
     <include name="ini4j-0.5.2.jar" />
diff --git a/lib/BUCK b/lib/BUCK
index 49d6f94..29d63a0 100644
--- a/lib/BUCK
+++ b/lib/BUCK
@@ -1,6 +1,6 @@
 prebuilt_jar(
   name = 'args4j',
-  binary_jar = 'args4j.jar',
+  binary_jar = 'args4j-2.0.26.jar',
   visibility = [
     '//src/com/facebook/buck/cli:cli',
     '//test/...',
diff --git a/lib/args4j-2.0.26.jar b/lib/args4j-2.0.26.jar
new file mode 100644
index 0000000..0fb80dd
--- /dev/null
+++ b/lib/args4j-2.0.26.jar
Binary files differ
diff --git a/lib/args4j.jar b/lib/args4j.jar
deleted file mode 100644
index e188b3d..0000000
--- a/lib/args4j.jar
+++ /dev/null
Binary files differ