merge changes for 3.7.25-release

.hgtags

autobuild.xml

doc/contributions.txt

indra/cmake/CMakeLists.txt

indra/cmake/FindURIPARSER.cmake

indra/cmake/URIPARSER.cmake

indra/llcommon/CMakeLists.txt

indra/llcommon/lluriparser.cpp

indra/llcommon/lluriparser.h

indra/llimage/llimagepng.cpp

indra/llimage/llpngwrapper.cpp

indra/llimage/llpngwrapper.h

indra/llui/llmenugl.cpp

indra/llui/lltextbase.cpp

indra/llui/lltextbase.h

indra/llui/lltextutil.h

indra/llui/llurlentry.cpp

indra/llui/llurlentry.h

indra/llui/llurlmatch.cpp

indra/llui/llurlmatch.h