These files are usually prepackaged with viewer, either all issues should lead to an error or all issues should use warns. I don't think it is a critical issue, so instead of crashing, printing out filename.
consolidated most indra-specific constants in llcommon under indra_constants.h
fixed issues with operations on mixed unit types (implicit and explicit)
made LL_INFOS() style macros variadic in order to subsume other logging methods
such as ll_infos
added optional tag output to error recorders