Don't check for date_default_timezone_*, we're using php 5.3+

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@fiducial.net>
Don't check for filter_var, we're using php 5.3+

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@fiducial.net>
Remove SystemTextEncoding::magicDequote,
magic_quotes are deprecated in php 5.3 and removed in 5.4

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@fiducial.net>
Fix an old typo

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@fiducial.net>
MCRYPT_MODE_ECB doesn't require an IV

The "warning" bug is not present in 5.3+
https://bugs.php.net/bug.php?id=43143

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@fiducial.net>
Merge pull request #349 from echampet/old-php

Round of cleanup linked to the php 5.3 dependency: remove magicDequote, IV on mcrypt, date_default_timezone, etc.