Redirect to rtfm.org.

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extra : rebase_source : baf8176582c74e7cf91700ec48a7c7c56fdb3ad6
Enable use of custom processor classes again (fixes #48).

--HG--
extra : rebase_source : ce6dc553c47282862381d35aad3b98d9dcf82e9f
New bugfix release 0.2.7!
Added tag 0.2.7 for changeset bfc58b81a472