Merged Donal's changes to MNET to allow moodle to also network with mahara.

Merged Donal's changes to MNET to allow moodle to also network with mahara.
    changelog follows

    [MNET-manual] added version.php, install.xml and upgrade.php patches
    Route remote users back to their home server without going through jump.php and land.php
    Display app-specific strings in the user view
    Display the application icon in the Remote Host block
    Hide the 'logs' tab if the application under review is not Moodle
    Hide the 'logs' tab if the application under review is not Moodle
    Update user record to note that picture == 1 once a picture has been
    transferred.
    Change 2 to uri - is this fluid?
    Add application paramter to bootstrap function
    Find the application
    Workaround for PHP5.2.2 bug: http://bugs.php.net/bug.php?id=41293
    $HTTP_RAW_POST_DATA was not being populated
    Ensure we get an application for our Peer
    Update the URI to use for MNET
    The default 'wantsurl' should be empty
    Use the appropriate 'land' url for the remote application
    Add hidden form elements for 'application'
    Add awareness of new Application concept
    Add awareness of new Application concept
    Add awareness of new Application concept
    Add awareness of new Application concept
    Add awareness of new Application concept
    Add awareness of new Application concept
    Add awareness of new Application concept