Extensive patching of inadvertent "TQ" conversions

Yesterday I patched many modules with various amounts of inadvertent "TQ" conversions. Most of them were harmless because the compiler doesn't know how to spell and the inadvertent changes were consistently mispelled. Thus the packages compiled normally. The sources merely looked weird when reading the code. For example, ETQUAL vs. EQUAL, RETQUIRED vs. REQUIRED, UNITQUE vs. UNIQUE, etc. The main reason for this cleanup effort is to restore the correct "human readability" of the source code. However, a handful of the inadvertent conversions might have played a role in various bug reports. Might have. If you have a favorite pet peeve bug then please rebuild from scratch in GIT and test again. No promises. I suspect very few bugs will be resolved by this effort, but who knows? I now can see SVG images in the file preview tooltip in Konqueror as well as through the embedded viewer. I would appreciate confirmation from others with this bug (bug report 615). Darrell