Allow text 1.0 and 1.1

Package text-1.0.0.0 is already out, so allow that.  Also assume that
the next text version won't break things either, so allow text-1.1
too.

Tested on a local cabal sandbox by running unit tests.

Fixes #38
Merge pull request #39 from nurpax/text-1.0

Allow text 1.0 and 1.1
Version-number bump.
Add URI filename support

Adds support for URI filenames by default, as documented here: http://www.sqlite.org/uri.html

Besides simply making this syntax available, this will allow the use of in-memory databases with a shared cache.
Merge pull request #41 from sethfowler/uri-filenames

Add URI filename support
Bump the version number.