Changes to haddock(4)

Changes to haddock:
commit 1944b94edca881d14e979d564719da6f196f8e63
Author: Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk>
Date:   Sun Feb 23 05:02:47 2014 +0000

    Don't shadow ‘strip’.

    -Wall complains

commit 49b2a05ee0d769568d97a091de93f2ce2512eef6
Author: Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk>
Date:   Sun Feb 23 04:58:50 2014 +0000

    Update test case for lifted GADT type rendering

    The parsing of these seems to have been fixed by GHC folk and it now
    renders differently. IMHO it now renders in a better way so I'm updating
    the test to reflect this.

commit dfc006ad2b8f5cb27570ac02c77aa63c5c027cd9
Author: Simon Hengel <sol@typeful.net>
Date:   Sat Feb 22 21:55:35 2014 +0100

    Turn a source code comment into specs

commit fc7fd1875d31dbfd37eaa058177e534b4fc6bc25
Author: Niklas Haas <git@nand.wakku.to>
Date:   Sat Feb 22 21:15:34 2014 +0100

    Strip a single leading space from bird tracks (#201)

    This makes bird tracks in the form

    > foo
    > bar
    > bat

    parse as if they had been written as

    >foo
    >bar
    >bat

    ie. without the leading whitespace in front of every line.

    Ideally we also want to look into how leading whitespace affects code
    blocks written using the @ @ syntax, which are currently unaffected by
    this patch.