Implement query about method overrides.
Remove the unused file.
Implement rebuilding.
Add the error handling.
Change the specification of build option recording.
Separate definition USR database with reference USR database.
Refactoring.
Reuse opened database pointers to reduce time to reopen the databases.
Implement name query.
Rplace clang_getExpansionLocation with clang_getSpellingLocation.
Change argument specification.
Follow the specification change of cxxtags.
* Update usage message.
* Update tests.
Removed obsolete scripts.
Update how to use the command.
* Removed the unused lines.
* Fix the bug that dead locks the database.
Follow the specification change of cxxtags.
Change the default parameter.
Improve the debug message.
* Update the document.
* Change the database parameter.