Mods to make compile on gcc 4.6.3 work mo betta

indra/cmake/00-Common.cmake

indra/llmath/llvolume.cpp

indra/llmessage/lliosocket.cpp

indra/llui/llconsole.cpp

indra/llui/llkeywords.cpp

indra/llui/lllayoutstack.cpp

indra/llui/lltextbase.cpp

indra/llui/lltexteditor.cpp

indra/llui/lltoolbar.cpp

indra/lscript/lscript_execute/lscript_readlso.cpp

indra/test/io.cpp

indra/test/llstreamtools_tut.cpp

indra/test/lltemplatemessagebuilder_tut.cpp