Make the code Python3 ready

.gitignore

@@ -1,4 +1,4 @@
 build/
 dist/
 *.egg-info/
-
+*.pyc

client/pypssl/__init__.py

@@ -1 +1 @@
-from api import PyPSSL
+from .api import PyPSSL

client/setup.py

@@ -4,7 +4,7 @@ from setuptools import setup
 
 setup(
     name='pypssl',
-    version='1.0.1',
+    version='1.1',
     author='Raphaël Vinot',
     author_email='raphael.vinot@circl.lu',
     maintainer='Raphaël Vinot',
@@ -14,11 +14,12 @@ setup(
     packages=['pypssl'],
     classifiers=[
         'License :: OSI Approved :: GNU General Public License v3 (GPLv3)',
-        'Development Status :: 3 - Alpha',
+        'Development Status :: 5 - Production/Stable',
         'Environment :: Console',
         'Intended Audience :: Science/Research',
         'Intended Audience :: Telecommunications Industry',
-        'Programming Language :: Python',
+        'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
         'Topic :: Security',
         'Topic :: Internet',
     ],