add more idiomatic initializer
add more idiomatic initializer

http://google-styleguide.googlecode.com/svn/trunk/objcguide.xml#Avoid_Accessors_During_init_and_dealloc
breakoutbit/ZeroPush-iOS,pheld/ZeroPush-iOS,ZeroPush/ZeroPush-iOS,jessearmand/ZeroPush-iOS