instance pool added
bq_cond_guard added for push and pop
instance_pool errros fixed
bq_cond_send changed to multicast
instance_heap bugfix
Header added; fallback to one bq_cond
tabs cleanup
new fancy synchronization logic from blocking_queue_t (not tested though)
Merge pull request #2 from discobot/master

Добавил pd/lightning/instance_pool