Update manifest.in to include docs and tests in source distributions.
Update manifest.in to include docs and tests in source distributions.

13steinj/praw,darthkedrik/praw,gschizas/praw,praw-dev/praw,RGood/praw,RGood/praw,nmtake/praw,nmtake/praw,leviroth/praw,praw-dev/praw,13steinj/praw,gschizas/praw,darthkedrik/praw,leviroth/praw