Update wordpress to 3.9
Update php/mysql cartidges
Merge pull request #52 from axilleas/update_to_3.9

Update wordpress to 3.9. Fix #51
Merge pull request #53 from axilleas/update_carts

Update php/mysql cartidges
Update to wordpress 3.9.1
Merge pull request #54 from liggitt/wordpress_3_9_1

Update to wordpress 3.9.1