- Reverted init/deinit of osal loogging.
- Temporarily commented out deinit in libtizosal destructor.
Fixed http renderer config port not being instantiated.
Reverted ini/deinit of osal logging in tizdec
Added tiz_event_XXX_set APIs.
libtizosal unit tests now organized with one suite per module.
Added async event callbacks entry points in scheduler and processor interfaces.
WIP: http renderer - accept connection logic in icerprc
Moved networking logic and io watchers to icercon.[ch]
Added -l79 to indent command
Updated indentation in http_renderer/src
Added emacs local variables to check_http_renderer.c
Added http-parser sources and moved utarray to its own directory.

--HG--
rename : libtizosal/src/utarray.h => libtizosal/src/utarray/utarray.h
Updated tizosalvector.c to add a reference to utarray's author.
Added emacs local variables to libtizosal test code.
Added Sam Rushing's avl tree implementation
Added http parser wrapper to the osal library.
Added README file to avl folder
Renamed tizproc_event_xxx APIs to tizproc_event_xxx_ready.
Added handling for SIGQUIT (skip to next song) and SIGTSTP (pause).
WIP: Some more work done on the http renderer's handling of the listener's
initial GET request.