Adding template engine

Adding error handling
Adding basic SMTP class
core routing is working

system/vendor/h2o/errors.php

@@ -0,0 +1,10 @@
+<?php
+
+
+#	Errors
+class H2o_Error extends Exception {}
+class ParseError extends H2o_Error {}
+class TemplateNotFound extends H2o_Error {}
+class TemplateSyntaxError extends H2o_Error {}
+
+?>