Adding Schema::rename('oldtable','newtable') support

Signed-off-by: Colin Viebrock <colin@viebrock.ca>

laravel/database/schema/grammars/mysql.php

@@ -213,6 +213,18 @@ class MySQL extends Grammar {
 	}
 
 	/**
+	 * Generate the SQL statement for a rename table command.
+	 *
+	 * @param  Table    $table
+	 * @param  Fluent   $command
+	 * @return string
+	 */
+	public function rename(Table $table, Fluent $command)
+	{
+		return 'RENAME TABLE '.$this->wrap($table).' TO '.$this->wrap($command->name);
+	}
+
+	/**
 	 * Generate the SQL statement for a drop table command.
 	 *
 	 * @param  Table    $table

laravel/database/schema/grammars/postgres.php

@@ -199,6 +199,18 @@ class Postgres extends Grammar {
 	}
 
 	/**
+	 * Generate the SQL statement for a rename table command.
+	 *
+	 * @param  Table    $table
+	 * @param  Fluent   $command
+	 * @return string
+	 */
+	public function rename(Table $table, Fluent $command)
+	{
+		return 'ALTER TABLE '.$this->wrap($table).' RENAME TO '.$this->wrap($command->name);
+	}
+
+	/**
 	 * Generate the SQL statement for a drop table command.
 	 *
 	 * @param  Table    $table

laravel/database/schema/grammars/sqlite.php

@@ -202,6 +202,18 @@ class SQLite extends Grammar {
 	}
 
 	/**
+	 * Generate the SQL statement for a rename table command.
+	 *
+	 * @param  Table    $table
+	 * @param  Fluent   $command
+	 * @return string
+	 */
+	public function rename(Table $table, Fluent $command)
+	{
+		return 'ALTER TABLE '.$this->wrap($table).' RENAME TO '.$this->wrap($command->name);
+	}
+
+	/**
 	 * Generate the SQL statement for a drop table command.
 	 *
 	 * @param  Table   $table

laravel/database/schema/grammars/sqlserver.php

@@ -213,6 +213,18 @@ class SQLServer extends Grammar {
 	}
 
 	/**
+	 * Generate the SQL statement for a rename table command.
+	 *
+	 * @param  Table    $table
+	 * @param  Fluent   $command
+	 * @return string
+	 */
+	public function rename(Table $table, Fluent $command)
+	{
+		return 'ALTER TABLE '.$this->wrap($table).' RENAME TO '.$this->wrap($command->name);
+	}
+
+	/**
 	 * Generate the SQL statement for a drop table command.
 	 *
 	 * @param  Table   $table

laravel/database/schema/table.php

@@ -143,6 +143,17 @@ class Table {
 	}
 
 	/**
+	 * Rename the database table.
+	 *
+	 * @param  string  $name
+	 * @return Fluent
+	 */
+	public function rename($name)
+	{
+		return $this->command(__FUNCTION__, compact('name'));
+	}
+
+	/**
 	 * Drop the database table.
 	 *
 	 * @return Fluent