updated extension to be Symphony 2.3.x compatible
added extension.meta.xml for Sym 2.3
Merge pull request #4 from michael-e/master

Filename not sanitized
Merge pull request #5 from wjn/master

2.3.x compatibility
updated extension.driver.php, field.s3upload.php to make compatible for Symphony 2.3.1 and higher and added PHP 5.4 fix; updated extension.meta.xml and README with version number and history.
Merge pull request #10 from bzerangue/master

Release 0.7
Fixed extension.meta.xml; added required symphony attribute for the author/name node.
Merge pull request #11 from bzerangue/master

Release 0.7.1
Fixed extension.meta.xml; Updated domain name in xmlns... removed www which caused conflicts.
Merge pull request #13 from bzerangue/master

Updated `extension.meta.xml` to 0.7.2