changed version to 1.0.1dev and added link for pre-build windows packages to README
updated changelog
Merge remote-tracking branch 'jan-e/master' into autowidth
Merge remote-tracking branch 'upstream/master' into autowidth
modified readme, added docs and test for ExcelSheet::setColWidth() autofit
changed readme
updated changelog
Merge pull request #84 from johmue/master

various minor changes