Merge remote-tracking branch 'origin/dev-python/exam'

Pull in this per-package branch with a subtree merge [1]:

  $ git merge -s ours --no-commit origin/dev-python/exam
  $ git read-tree --prefix=dev-python/exam/ -u origin/dev-python/exam
  $ git commit -v

so folks who aren't using a version of Layman that supports submodules
(currently everybody) can use this modular package.

[1]: https://www.kernel.org/pub/software/scm/git/docs/howto/using-merge-subtree.html

diff --cc dev-python/exam/exam-9999.ebuild
index 0000000000000000000000000000000000000000,da565e66d81303a4f8ee23064ffecb41b8c82fde..da565e66d81303a4f8ee23064ffecb41b8c82fde
mode 000000,100644..100644
--- /dev/null
--- 2/exam-9999.ebuild
+++ b/dev-python/exam/exam-9999.ebuild