[js:options] add client option dispInlineRegex for legacy connectors

[nao-pon]

Add options to the client side for legacy connectors that do not return dispInlineRegex value on the connector side.

	/**
	 * MIME regex of send HTTP header "Content-Disposition: inline" or allow preview in quicklook
	 * This option will overwrite by connector configuration
	 * 
	 * @type String
	 * @default '^(?:(?:image|video|audio)|text/plain|application/pdf$)'
	 * @example
	 *  dispInlineRegex : '.',  // is allow inline of all of MIME types
	 *  dispInlineRegex : '$^', // is not allow inline of all of MIME types
	 */
	dispInlineRegex : '^(?:(?:image|video|audio)|(?:text/plain|application/pdf)$)',