Fix exception when passing arguments to default ("/") page..
Fix exception when passing arguments to default ("/") page..

ISSUE #138: Fatal exception when passing _GET vars to default page

/contentSystemClass.php:
	* parse_section():
		-- if the internal "section" value is invalid, set it as "content/index" (instead of just if the value is zero).

crazedsanity/cs-content,crazedsanity/cs-content