Updated build script.
Updated build script to use common module.
Fixed two bugs. Wrong cleanup method placement and wrong handling of statement object.
Now it can make persist-able database file on disk. Added regression test for it.
Updated README. Updated simple-query delete methods' namings to reflect
more SQL syntax. (delete in -> delete from)
Added unlimited enumerating simple query.
Renamed related methods.
Patched -insert~ method to raise an error when user is inserting a value
with a bad table-name. Also, added a regressio test case for it.
Fixed -insert~ method's SQL command generation logic to support special characters
by wrapping the name with `[` and `]` characters.
Updated to accept special characters in identifiers such as table-name or column name.
Current implementation uses square-bracket(`[` and `]`) to escape special characters.
I couldn't find any more generic escape sequence generation method.
Currently `[`, `]`, `'`, `"` characters are prohibited as identifier for safety.
Renamed some dir.