Fix intersect definition
Added tests for our changes to Range.
Remove use of ok_ to make tests clearer.
A couple of tests for Range.__eq__.
Removed unrequired import.
Add test for merging multiple ranges.
Merge pull request #16 from scraperwiki/merge-fixes

Merge fixes
Bump to 0.4.0; add coverage tracking
Update .travis.yml
Update .travis.yml
Update .coveragerc
Update .travis.yml, .coveragerc
Omit pyexcelerate/tests from coverage
Update MANIFEST.in
Use setuptools instead of distutils
Modify contact details
Escape strings before putting them into XML.
Merge pull request #18 from scraperwiki/xml-escaping

Escape strings before putting them into XML.