ugrid.js releases workers at master disconnect
ugrid.js releases workers at master disconnect


Former-commit-id: d29d134cb8affe974191bd067cdac09737fd7a86
mvertes/skale-engine,mvertes/skale-engine,mvertes/skale-engine,skale-me/skale-engine,skale-me/skale-engine,skale-me/skale-engine