IMAP: add load-testing script
IMAP: small new leak fixed
don't try to write to disconnected clients
track size of job-queue
merge cache branch

this adds a global shared thread-safe message cache
add pre-allocated memory pool for intra-thread messaging
add pre-allocated memory pool for client data
IMAP: cleaning up some fetch code
fix some regressions
clean out old python code
more regressions
small cache improvements
IMAP: off-by-one regression
wip
rename Mem_T to Stream_T
ssl mempool fix
IMAP: install memory profiler when DEBUG is defined
always use the GLib memory pools
reduce blob copy
add mempool implementation