Initial work
Sigh.
Add binding for DSA_new
Merge branch 'master' into exception-heirarchy-refactor

Conflicts:
	cryptography/hazmat/backends/openssl/backend.py
Convert stuff
Missing imports
Merge pull request #746 from skeuomorf/dsa-binding

Add binding for DSA_new
whoops
Merge pull request #747 from alex/exception-heirarchy-refactor

Try to use more specific exceptions in places.
Merge pull request #750 from reaperhulk/update-098e

0.9.8e EVP Workaround
move some NIDs/SNs to another file
reorganize and make 0.9.8e (rhel/centos 5) work
fix some warnings
put things in the right place