#12415: Fix some doctests in sagenb
Modify code so we can remove the old notebook from Sage. See
http://trac.sagemath.org/sage_trac/ticket/11409.
Change "host" back to "interface"
Needed for the new doctester framework

See http://trac.sagemath.org/sage_trac/ticket/12415
Don't doctest the data dir
Revert "#12415: Fix some doctests in sagenb"

Jeroen says this is no longer necessary.

This reverts commit 23da3557b5440698802bd8db3f7e1611f6ebfd1c.
properly handle directories not ending in .sagenb
provide warning about URL when using openid
Don't assume `whoami` exists

Solaris doesn't have a `whoami` command.
Merge pull request #139 from ppurka/openid-warning

provide warning about URL when using openid (fixes #122)
use endswith()
Merge pull request #138 from ppurka/dot_sagenb

properly handle directories not ending in .sagenb
Merge pull request #121 from jhpalmieri/remove-old-notebook

We should remove the old notebook from Sage.
Merge pull request #84 from kini/new-doctester-fixes

#12415: Fix some doctests in sagenb