Merge with viewer-2-0

indra/cmake/TemplateCheck.cmake

indra/llcharacter/llkeyframemotion.h

indra/llcommon/llapp.h

indra/llcommon/llapr.h

indra/llcommon/llcommon.h

indra/llcommon/llerror.cpp

indra/llcommon/llqueuedthread.cpp

indra/llcommon/llthread.h

indra/llmessage/lliohttpserver.h

indra/llplugin/llpluginprocessparent.cpp

indra/llplugin/llpluginprocessparent.h

indra/llrender/llfontfreetype.h

indra/llrender/llfontgl.cpp

indra/llui/CMakeLists.txt

indra/llui/llbutton.cpp

indra/llui/llbutton.h

indra/llui/lldockablefloater.cpp

indra/llui/lldraghandle.cpp

indra/llui/llfloater.cpp

indra/llui/llpanel.cpp