not sending the access control headers by default, send only when the allowed_origins directive is set

add the number of stored messages and the number of channels and messages in the trash to summarized channels statistics

renaming the queue of messages to be removed from the memory and changing the way the queue is cleared

avoiding segmentation fault by access a null reference on a tree node, after be removed by another worker

fix to not lose shared memory content after reload the server changing the shared memory size, has to do a reload to change the size

adding the channel to a queue to be easier, faster and stable go through all channels when looking for those ready to be discarded

changing the syntax of calls to ngx_rbtree_delete and ngx_rbtree_insert methods, to not use type casting

simplifying method ngx_rbtree_generic_insert to use same logic of *_rbtree_insert_value nginx methods

adding function dateToUTCString to ensure two digits on date, the toUTCString function on Date class not ensure that on all browsers

copying pushstream.js to a temporary dir without the function encapsulation, to all functions be available on tests

fix to send close connection immediately when an error happens writting to socket, bug introduced on last commit of May 13, 2012 which sends NGX_OK for connections with NGX_AGAIN writing retturn code