Merged in SL-17219 (pull request #992)

indra/llappearance/lltexlayerparams.cpp

indra/llappearance/lltexlayerparams.h

indra/llcommon/llapr.cpp

indra/llcommon/llqueuedthread.cpp

indra/llcommon/llqueuedthread.h

indra/llcommon/lltimer.cpp

indra/llcommon/llworkerthread.cpp

indra/llcommon/llworkerthread.h

indra/llcommon/workqueue.h

indra/llcorehttp/_httplibcurl.cpp

indra/llcorehttp/_httpoperation.cpp

indra/llcorehttp/_httpoperation.h

indra/llcorehttp/_httpoprequest.cpp

indra/llcorehttp/_httpoprequest.h

indra/llcorehttp/_httpopsetpriority.cpp

indra/llcorehttp/_httpopsetpriority.h

indra/llcorehttp/_httppolicy.cpp

indra/llcorehttp/_httppolicy.h

indra/llcorehttp/_httpservice.cpp

indra/llcorehttp/_httpservice.h