Updated all plugins that are non-forked. Added some new plugins.

Added update_plugins.py which can fetch new plugins from GitHub.

New plugins added: zencoding, vim-indent-object, taglist, nginx.vim

sources_non_forked/snipmate-snippets/ant/skel/basic.snippet

@@ -0,0 +1,29 @@
+<project name="PROJECT NAME" default="dist" basedir=".">
+    <description>
+    </description>
+
+    <!-- set global properties for this build -->
+    <property name="src" location="src"/>
+    <property name="build" location="build"/>
+    <property name="dist"  location="dist"/>
+
+    <target name="init">
+        <tstamp/>
+        <mkdir dir="${build}"/>
+    </target>
+
+    <target name="compile" depends="init" description="compile the source " >
+        <javac srcdir="${src}" destdir="${build}"/>
+    </target>
+
+    <target name="dist" depends="compile" description="generate the distribution" >
+        <mkdir dir="${dist}/lib"/>
+        <jar jarfile="${dist}/lib/MyProject-${DSTAMP}.jar" basedir="${build}"/>
+    </target>
+
+    <target name="clean"
+        description="clean up" >
+        <delete dir="${build}"/>
+        <delete dir="${dist}"/>
+    </target>
+</project>