Add vasprintf compatibility function
Add cnid_mysql_execute() wrapper
Modify lookup to use a single OR query
Enhance lookup to use prepared statements
Enhance cnid_add with prepared statements
Include SQL query in error message
Add MYSQL_CFLAGS and MYSQL_LIBS with AC_ARG_VAR
Modify update behaviour to delete everythig and then insert in a loop until it worked
Fix mysql_stmt_fetch() result check and reset the hint in the db handle
Move MySQL check to file with the other CNID backend checks and add options summary for afpd