Whitespace changes by clang-format.

These files are the ones with the least number of changes when running
clang-format over them and only the less controversial changes are
included, with a preference for having stay the same where things are
likely to be more controversial.
http://blog.qt.digia.com/blog/2014/04/15/qt-creator-3-1-0-released/ supports clang-format along with the other tools.