Add INSERT IGNORE INTO function.

v0.0.4

Fixes #1.  Add INSERT IGNORE INTO function.

Some optimization to the code.

v0.0.3

Refactor code. Fix problem when $data is not an array or array.  More…

First release

v0.0.2

Fix case when a single row is passed.

Initial release

v0.0.1

Fix case when a single row is passed.