New feature: Command line installer. Credit: Dilan Anurudda.

New feature: Command line installer.  Credit: Dilan Anurudda.

This was a Google Summer of Code 2007 Project.

This introduces two new files, admin/cliupgrader.php and lib/installlib.php.

It also introduces a new PEAR library, Console_GetOpt.  I have recieved permission from the upstream author to include this in GPL Moodle (essentially dual license it) -  notes in lib/pear.

Most stuff that outputs html during install gets suppressed by the use of a constant.

Run the script like  php admin/cliupgrade.php --help for info.

Note that this all uses strings from install/ rather than lang, so I have updated stringnames.txt accordingly and they'll all be broken until the cronjob that generates them runs.