Listen on all sort of domains
Allow anybody to delete a snippet.

I got too many requests in the past, most of because people created snippets via the API and can't delete them, or because of legal issues.
Merge remote-tracking branch 'origin/master'
Merge branch 'develop'

Conflicts:
	dpaste/urls/dpaste.py
	dpaste/views.py
Fixed couple of merge issues
Fixed snippet delete function.
Fixed a bug that raised an error if a lexer is unknown
More precise url handling
Fixed missing import
About improvements
Trailing newline on raw responses

Without this you cannot easily share patches:

    user@machine1 $ git diff | curl -F 'content=<-' https://dpaste.de/api/
    user@machine2 $ curl https://dpaste.de/xxxx/raw/ | git apply
    fatal: corrupt patch at line 67
Allow raw snippets without trailing slash

Fixes an asymmetry where both of

  curl https://dpaste.de/xXxx
  curl https://dpaste.de/xXxx/

work, but

  curl https://dpaste.de/xXxx/raw/

fails without a trailing slash (because curl doesn't follow redirects by
default).
Merge pull request #22 from mgedmin/better-raw-responses

Better raw responses
Merge branch 'master' into develop