Add package: git-review (#3088)

* Add git-review

* Fix flake8 errors

* use PythonPackage for git-review

* added dependencies for git-review

* fix flake8

* moved url's to pypi.io based urls

* fixed flake8... again

* mostly url fixes, not tested, will do tomorrow

* flake8 fix

* changed URL for py-pysocks

* Fixed URL for pysocks

* fixed url

var/spack/repos/builtin/packages/py-coverage/package.py

@@ -29,8 +29,9 @@ class PyCoverage(PythonPackage):
     """ Testing coverage checker for python """
 
     homepage = "http://nedbatchelder.com/code/coverage/"
-    url      = "https://pypi.python.org/packages/source/c/coverage/coverage-4.0a6.tar.gz"
+    url      = "https://pypi.io/packages/source/c/coverage/coverage-4.3.4.tar.gz"
 
+    version('4.3.4', 'd347766b06bbb4fd0bc822014b7cfb0a')
     version('4.0a6', '1bb4058062646148965bef0796b61efc')
 
     depends_on('py-setuptools', type='build')