Conform to Printable, not DebugPrintable

DebugPrintable provides valuable information for debugging when left to
the defaults. Meanwhile, let Database/Statement be printable:

 - Database prints the path
 - Statement prints the raw SQL

Signed-off-by: Stephen Celis <[email protected]>

Author: stephencelis

SQLite/Database.swift

@@ -468,10 +468,11 @@ public final class Database {
 
 }
 
-extension Database: DebugPrintable {
+// MARK: - Printable
+extension Database: Printable {
 
-    public var debugDescription: String {
-        return "Database(\(String.fromCString(sqlite3_db_filename(handle, nil))!))"
+    public var description: String {
+        return String.fromCString(sqlite3_db_filename(handle, nil))!
     }
 
 }

SQLite/Statement.swift

@@ -207,11 +207,11 @@ extension Statement: GeneratorType {
 
 }
 
-// MARK: - DebugPrintable
-extension Statement: DebugPrintable {
+// MARK: - Printable
+extension Statement: Printable {
 
-    public var debugDescription: String {
-        return "Statement(\"\(String.fromCString(sqlite3_sql(handle))!)\")"
+    public var description: String {
+        return String.fromCString(sqlite3_sql(handle))!
     }
 
 }