First version with python3 support.

* Moved requirements*.txt files to proper spec definitions in setup.py
 * Added a new fig.compat module to store some compatibility code

tests/container_test.py

@@ -1,3 +1,4 @@
+from __future__ import unicode_literals
 from .testcases import DockerClientTestCase
 from fig.container import Container
 

tests/project_test.py

@@ -1,3 +1,4 @@
+from __future__ import unicode_literals
 from fig.project import Project
 from .testcases import DockerClientTestCase
 

tests/service_test.py

@@ -1,3 +1,5 @@
+from __future__ import unicode_literals
+from __future__ import absolute_import
 from fig import Service
 from .testcases import DockerClientTestCase
 

tests/testcases.py

@@ -1,3 +1,5 @@
+from __future__ import unicode_literals
+from __future__ import absolute_import
 from docker import Client
 from fig.service import Service
 from fig.cli.utils import docker_url