setup.py: removed py2.5 and six, added myself to credits

setup.py

@@ -32,16 +32,15 @@
     long_description = open(os.path.join(HERE, "README.rst")).read(),
     platforms = ["POSIX", "Windows"],
     url = "http://construct.readthedocs.org",
-    author = "Tomer Filiba, Corbin Simpson",
-    author_email = "tomerfiliba@gmail.com, MostAwesomeDude@gmail.com",
-    install_requires = ["six"],
-    requires = ["six"],
+    author = "Arkadiusz Bulski, Tomer Filiba, Corbin Simpson",
+    author_email = "arek.bulski@gmail.com, tomerfiliba@gmail.com, MostAwesomeDude@gmail.com",
+    install_requires = [],
+    requires = [],
     provides = ["construct"],
     keywords = "construct, declarative, data structure, binary, parser, builder, pack, unpack",
     classifiers = [
         "Development Status :: 5 - Production/Stable",
         "License :: OSI Approved :: MIT License",
-        "Programming Language :: Python :: 2.5",
         "Programming Language :: Python :: 2.6",
         "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",