Fix session cookie options

Set default cookie_path and correctly set cookie_httponly
bug fix for package uninstall

adds array check for attribute uninstall where no search attribute key
is present.
make uPreviousLogin nullable
Update Zend Locale and Zend Translate
Merge pull request #190 from mlocati/update-zend-locale-translate

Update Zend Locale and Zend Translate
Merge pull request #170 from mlocati/fix-session-cookie-options

Fix session cookie options
Merge pull request #181 from Remo/patch-4

make uPreviousLogin nullable
Merge pull request #178 from ChadStrat/master

bug fix for package uninstall