Test suite for revisions and date related magic variables.

Test suite for revisions and date related magic variables.

Tests should be carefully reviewed, please note there is are exceptions
for 'revisionday' and 'revisionmonth1' magics which are hardcoded in
the parser to return an integer.

Follow up r66200

TESTS:

$ php phpunit.php -c suite.xml --filter MagicVariable --testdox
PHPUnit 3.5.10 by Sebastian Bergmann.

MagicVariable
 [x] Currentday is un padded
 [x] Currentdaytwo is zero padded
 [x] Localday is un padded
 [x] Localdaytwo is zero padded
 [x] Currentmonth is zero padded
 [x] Currentmonthone is un padded
 [x] Localmonth is zero padded
 [x] Localmonthone is un padded
 [x] Revisionday is un padded
 [x] Revisiondaytwo is zero padded
 [x] Revisionmonth is zero padded
 [x] Revisionmonthone is un padded
$