Fixes#4019, email component: attaching file is broke, fixes undefined variable, allows full paths to attachment.
Fixes#4171, Email Component: Lost a head line 'period' via SMTP method.
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git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@6522 3807eeeb-6ff5-0310-8944-8be069107fe0
Implemented Validation::extension(); and Vaidation::range();
Updated copyright notices in all files"
git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@6296 3807eeeb-6ff5-0310-8944-8be069107fe0