Log Message:
Update ruby-sqlite3 to 1.2.1.

Release Name: 1.2.1

Notes:
Only a single change in this release: sqlite3
3.3.8 and higher have changed the format of the
'dflt_value' column for the table_info pragma.
This caused breakage in apps that depend on that
pragma, like Ruby on Rails. This release makes the
Database#table_info helper check the libversion,
and adjust the dflt_value column accordingly. If
you want the new format and not the old, you can
invoke the table_info pragma directly, instead of
using the helper.

Release Name: 1.2.0

Notes:
* Fixed bug that caused crashes when type translation was asked to translate the \ 
type of a typeless column (like count(*), etc.)
* Added pre-built sqlite3_api_wrap.c to remove the dependency on SWIG.
* db.transaction should now catch all exceptions (bug #3981)
* Removed lots of warnings when running in -w mode
* Fixed problems with callbacks (thanks Sylvan Joyeux!)
* Named bind parameters may now be specified as symbols, or as strings. You can \ 
also leave off the leading colon when specifying them as a string.
* DL (pure-ruby) driver is now deprecated.
* Bignum values may be bound in a prepared statement.
* Get a more detailed error message when the connection cannot be established.
* Reset the statement when binding new variables to a prepared statement.