Loads the latest package information from the channel server.
This method contacts the packages channel server using a
PEAR_Remote instance. If any errors are
encountered (channel server does not host the package, bad package name,
etc.) they will be pushed onto the error stack.
Note
Cette fonction ne peut pas être appelée de façon statique.
Valeur retournée
boolean - TRUE if the information was retrieved successfully, FALSE
otherwise. Errors will be pushed onto the error stack.
