Fix minor obex bugs and re-format the comments

re-format comments
move connectible to connectable
remove unnecessary throws
remove not-used function ClientOperation.readResponse()
fix client abort case for PUT
set mOpen for PrivateOutputStream
add to platform.xml

data/etc/platform.xml

@@ -148,5 +148,7 @@
             file="/system/framework/android.test.runner.jar" />
     <library name="com.android.im.plugin"
             file="/system/framework/com.android.im.plugin.jar"/>          
+    <library name="javax.obex"
+            file="/system/framework/javax.obex.jar"/>
 
 </permissions>