readability, functionality, bug fixes

comm() function altered, added the possibility of make regular exp
queries.
parse_response() and parse_response4smarty() functions altered to
support a "single data" responses from server
Added documentation to functions following PHPDoc guidelines
Added version number (1.4) for follow the changes more easy
by Cristian Deluxe (djcristiandeluxe [at] gmail [dot] com) on Nov 17,
2011