ran doxygen -s -u to upgrade the doxygen config file
updating config properties added during upgrade process, adding error log file to doxygen config, adding doxygen output directory & error log to .gitignore
updating documentation in SampleMoneyModule based on doxygen error log output; changing an xml-style hint to a uri-style hint in the class summary, improving documentation of Initialise method and removing a superfluous parameter, improving documentating of ClientClosed method and documenting an omitted parameter
Improving documentation of AttachToAvatar and GetLine methods in LSL_Api.cs based on doxygen error output
Scipt modules get the OpenMetaverse types, so lists passed as arguments to script module functions which then later call LSL_Types.list.GetVector3Item() or LSL_Types.list.GetQuaternionItem() methods would then trigger an InvalidCastException, which is now avoided.