2. trying to use tsdb_xxx_to_yyy

2. msvc: C4477, "%ld" => "%" PRId64 ""

2. allow buffer-type conversion within taos

2. report error for parameterised-select

2. more precise error message, according ODBC doc

   such as pyodbc
2. SQLDescribeCol
3. more DATA-TYPE-convertions in SQLGetData

2. fprint error message when SQLxxx failed in tcodbc

2. use install.sh to install odbcinst/odbc record in system
3. add packages (unixodbc/unixodbc-dev) to install in .travis.yml