Make sure the solution/projects get saved

Fixes an issue with automatic saving of project and solution files that
@jtclancey reported on Twitter
(https://twitter.com/jtclancey/status/392786399323115520). Looks like I
broke this in PR #28 after replacing the call to Visual Studios SaveAll
with individual saves on project items.
remove generated file
Merge pull request #31 from davemckeown/remove-whitespace-on-save

Fix for the project / solution file issue @jtclancey found