Merge pull request #20 from eborio/master

Merge branch 'hotfix/fix-readme'

Changes to documentation. Added missing parenthesis to "if"

Fix for missing $cmd on unix-type systems.

Merge pull request #15 from luclanet/patch-1

Update MY_Upload.php

Changed $_multi_upload_data to clear on each calling of the do_multi_upload() method.

Merge pull request #8 from korovacow/patch-1

corrected spelling error (nothing major, but a little confusing at first glance)

Added library extension and documentation.

Initial commit