[base] TimeoutScheduler: new class, will be used for timeouts in the future, especially for the director plugin's object cache.
[base] TimeoutScheduler: added some documentation
README update. minor typo for Ubuntu 12.04 LTS install
INSTALL updates
INSTALL instruction updates
[base] adding missing dep to libtbb
[flow] added support for LLVM 3.3
cmake: added cscope make-target
[plugins] director: more work on caching
.gitignore update
[plugins] director: some doc updates
[plugins] director: some code cleanups in FCGI backend code
minors
autogen update
[plugins] director: TODO update
[plugins] director: some documentation
[http] HttpWorker: name worker threads

This way, a `ps -Leo pid,comm,cmdline` will print "worker/0", "worker/1"
etc, which might help when debugging.
[flow] FlowRunner: code cleanup
[plugins] director: code cleanup
hard-disabled imageable plugin (work-in-progress anyways) as Ubuntu 12.04 ships with a version of cmake that doesn't understand this part