some fixes applied

Cool. Found in the inbox some messages from the Stellarium development team, encouraging me to check a pre-release version. A number of updates were applied. 

A carbon star list was added to the WUT and Search list. Great. The Hercules reference was corrected. The search result shows "Hercules" and "Hercules [star]." Brilliant. And then, a fix to the double star designations for items in the Struve appendices. Yes!