Zend_Date:  - fastened timezone checking  - deleted error suppressing if no date extension is installed (fixes ZF-986)
Zend_Date:
 - fastened timezone checking
 - deleted error suppressing if no date extension is installed
(fixes ZF-986)

git-svn-id: b6e219894c353fb1d215c78b2075057d8daadfba@3689 44c647ce-9c0f-0410-b52a-842ac1e357ba

tjohns/zf,svn2github/zend_framework,jupeter/zf1,svn2github/zend_framework,svn2github/zend_framework,tjohns/zf,tjohns/zf,jupeter/zf1,jupeter/zf1,svn2github/zend_framework,svn2github/zend_framework