created py-tomopy package and fixed its dependencies (#4576)

* added py-tomopy package

* fixed dependencies and added import_modules

* edited deps for tomopy with import_modules and added py-olefile pkg

* changed module name

* changed dependency to python because it will not build with setuptools

* fixed dependency list for py-tomopy and py-dxchange

* added py-nose dependency

* fixed tests

* commented out dependency py-counter

* fixed dependency py-pybtex-docutils

* removed nose as a dependency

* fixed flake8 errors

* fixed import_modules

* fixed import_modules indent

* fixed various issues in tomopy and deps files

var/spack/repos/builtin/packages/py-pybtex-docutils/package.py

@@ -31,6 +31,8 @@ class PyPybtexDocutils(PythonPackage):
     homepage = "https://pypi.python.org/pypi/pybtex-docutils/"
     url      = "https://pypi.io/packages/source/p/pybtex-docutils/pybtex-docutils-0.2.1.tar.gz"
 
+    import_modules = ['pybtex_docutils']
+
     version('0.2.1', '7ae4b00562bd8881f582edf95009cc62')
 
     depends_on('py-setuptools', type='build')