Pluto, the comet server

Added ignoring pluto.exe and pluto*.cfg, removed pluto.cfg

Changed flash command's name for using sequenced id.

Added a test that checks changing client's uid and tag from a publisher.

Rewrote almost of pluto.c and pluto.h
Implemented changing client's uid and tag(subchannel).
Implemented publishing multicast
(This can publish to another server when the client requested with PUT).

added a policy-file-request test.

indented "pluto.c" and "pluto.h".

fixed some test failures of updating data to the server.

fixed a bug that causes segmentation fault at mei_client_commit.

added some HTTP code in mei_server_status_code_to_string.
reverted executing buffer code and changed little.

added Charon.delegate for making receiver iframe easy.
fixed a bug that causes the javascript execption on IE again.

changed a executing buffer as a struct for fixing the bug of its memory pool.

fixed a bug that causes the exception of javascript on IE.

added a javascript file(charon.js) to connect pluto server.

added subchannel tests.

fixed bug mei_channel_remove cannot unbind clients correctly.
fixed bug a publisher cannot send clients with a tag.
added a comment to refer.

added PLUTO_FLAGS and removed DBGFLAGS variable, dex rule.

added the test of single and double long-polling request.

changed iteration in mei_channel_transmit for segmentation bugs.
fixed clients don't receive commitment with subchannel.
added mei_server_finalize to ensure finalization.

used apr's I/O functions instead of stdio functions.
added header macro to prevent including pluto.h twice.
added extern C block to use from cpp.

added test script written in Perl.

fixed segmentation fault bug at mei_request_set_parameters.

fixed that cannot configure hostname by config file.

used qsort and bsearch function for searching subchannel faster.

added 2 checkpoint, mei_server_check_acl and mei_channel_remove.

added svn:ignore to ignore pluto.tgz and pluto.cfg

removed subchannel feature from TODO.

fixed bug that generates tar ball including subversion's meta data.

implemented subchannel feature by tagging.
fixed bug that can delete channel without checking ip.
fixed bug that caused segmentation fault by sending 0 byte data.

added mei_request_set_tags function.
removed mei_request_get_parameter_raw function.
replaced type of event->tag and client->request.tag to apr_array_header_t.

added pluto's config sample file