Problems preventing installation

The attached patch fixes the following issues that prevent successful installation:

• Per https://drupal.org/update/modules/6/7#install-schema, it is not necessary to specifically install the database schemas, as Drupal will do that.
• The actions were not correctly labeled (per https://api.drupal.org/api/drupal/modules!system!system.api.php/function...).

Also, the patch adds the following modifications to the spam.info file:

• Add an optional configure property for quick access to the module's settings from the module page (https://drupal.org/node/542202#configure).
• The optional files property is for "files containing class or interface declarations". The .install file contains neither, and therefore, is not to be included in the files property (https://drupal.org/node/542202#files).