CC-2518: Auto install script for manual install

- install dir is renamed to install_minimal
- virtualenv command is moved to install script.
- need more work on install_full part

install_minimal/DoctrineMigrations/Version20110402164819.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Migrations\AbstractMigration,
+    Doctrine\DBAL\Schema\Schema;
+
+class Version20110402164819 extends AbstractMigration
+{
+    public function up(Schema $schema)
+    {
+        //start cc_show modifications
+        $show_table = $schema->getTable('cc_show');
+
+        $show_table->addColumn('genre', 'string', array('notnull' => 0, 'length' => 255, 'default' => ""));
+        //end cc_show modifications
+
+    }
+
+    public function down(Schema $schema)
+    {
+        //start cc_show modifications
+        $show_table = $schema->getTable('cc_show');
+
+        $show_table->dropColumn('genre');
+        //end cc_show modifications
+    }
+}