$baseDir when installed via composer

[peterhough]

When the plugin is installed via composer the m.php file fails because the $baseDir is incorrect.

$baseDir is being calculated as '/var/www/mywebsite/vendor/fooman/speedster' it should actually be '/var/www/mywebsite/shop'.

The 'shop' directory is set as 'magento-root-dir' in composer.

[klipach]

I've faced with same problem while installing fooman/speedster and my theme via composer. The problem looks more complex then just fix $baseDir. I tried to fix $baseDir but then i also need to fix $realDocRoot. After that i need to set different $realDocRoot for links to real files and to linked files. For me the easiest solution was to install fooman/speedsteradvanced