Move dragonfly2jsgf package files into dragonfly

I'm doing this because it doesn't really need to be a separate
package.

The module is now in engines/backend_sphinx and the unit test
file is in dragonfly/test.

dragonfly/engines/backend_sphinx/compiler.py

@@ -22,7 +22,7 @@
 This file implements the compiler for CMU Pocket Sphinx speech recognition
 engine.
 """
-from dragonfly2jsgf.dragonfly2jsgf import Translator, TranslationState
+from .dragonfly2jsgf import Translator, TranslationState
 from ..base import CompilerBase
 
 # noinspection PyUnusedLocal

dragonfly/engines/backend_sphinx/engine.py

@@ -43,7 +43,7 @@
     from jsgf import GrammarError, RootGrammar, PublicRule, Literal
     from pyaudio import PyAudio
 
-    from dragonfly2jsgf import Translator
+    from .dragonfly2jsgf import Translator
     from .compiler import SphinxJSGFCompiler
     from .grammar_wrapper import GrammarWrapper, ProcessingState
 except ImportError:

dragonfly/engines/backend_sphinx/grammar_wrapper.py

@@ -10,7 +10,7 @@
 
 import dragonfly.grammar.state as state_
 from dragonfly import Grammar
-from dragonfly2jsgf import LinkedRule
+from .dragonfly2jsgf import LinkedRule
 
 
 @functools.total_ordering

dragonfly2jsgf/test_dragonfly2jsgf.py → dragonfly/test/test_dragonfly2jsgf.py

@@ -2,8 +2,8 @@
 
 import jsgf.ext
 
+from dragonfly.engines.backend_sphinx.dragonfly2jsgf import *
 from dragonfly import *
-from dragonfly2jsgf import *
 from dragonfly.parser import ParserError
 from dragonfly import List as DragonflyList, DictList as DragonflyDictList