Merge pull request #81 from XoopsX/pref_encrypt

[core] add config data type "encrypt"
Merge pull request #82 from XoopsX/non_e_modifier

[core,legacy] with out preg `e` modifier
Merge pull request #89 from XoopsX/fix_admin_template

fix template override on admin panel
Merge pull request #90 from XoopsX/installer_patch

[installer] lang select only utf8 & en on PHP>=5.4
Merge pull request #91 from XoopsX/installer_autologin

[installer] autologin by XHR on install_insertData
Merge branch 'master' into CorePack
[CorePack] CorePack version 20140125