Get the decoded value of the location attribute instead of using to_s, which leaves encoded entities. This fixes issues when an Xcode project path contains XML entities, which are double-encoded (for example, &apos; becomes &amp;apos;) when the workspace is later written out.
Update CHANGELOG.md with info about not XML encoding project paths when loading workspaces.
Update CHANGELOG to actually reflect the problem that is being solved by changing from to_s to value.
Add test for workspaces containing projects whose path include XML entities.
Merge pull request #87 from amolloy/DontEncodeEntitiesInProjectPaths

Don't XML encode entities in the project paths when reading an Xcode workspace