kill compression thread when closing tlog and pick up remaining compression tasks on tlog initialization
really cancel the detached compression thread
fix universe.tlogs.tlc2.test_compression_bug with a strategic sleep
test that tlog collection picks up uncompressed tlogs from previous attempts
processed remarks from pull request
sleep a little longer in compression test so it succeeds on CI too
Merge remote-tracking branch 'refs/remotes/origin/ARAKOON-416-tlogcompression' into 1.6