Refactor code to follow PEP 8 and remove comments

Author: dddevid

MainyDB/__init__.py

@@ -1,6 +1,5 @@
-from .core import MainyDB, MongoClient
-from .core import Collection, Database
-from .core import ObjectId
+from .core import Collection, Database, MainyDB, MongoClient, ObjectId
+
 __version__ = '1.0.1'
 __author__ = 'devid'
 __easter_egg__ = "You've found the secret message! MainyDB is watching you... always."