v0.0.8

Adds (option to have images be fetched from cache instead of disk)[https://github.com//pull/7].

v0.0.7

Adds [https://github.com//pull/6](option to have more than one answer per audio question).

v0.0.6

Fixes Call-time pass-by-reference for PHP 5.4+.

0.0.5

Increased security.

• Increased minimum number of options from 2 to 4.
• Added random non-visual noise in the images.

Related to desirepath41/visualCaptcha#2 and desirepath41/visualCaptcha#17

V0.0.4

Fixes an issue with PHP strict mode.

desirepath41/visualCaptcha#13

Version 0.0.3

Closes #1