Fix tst_QCompleter::directoryModel() on OS X

By not assuming that we have the '/Developer' directory at the root
of the file system. 'Users' is less likely to be removed/deprecated.

Change-Id: I659bdb67cfb1ed2f73bc643ba4afe1f1f89d5bc5
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
Add Info.plist templates for the macx-icc makespec

Task-number: QTBUG-31355
Change-Id: Iea2ac2a072bbd2c0104f0704a86503c0982fb886
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Jake Petroules <jake.petroules@petroules.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
Fix tst_QFile::caseSensitivity on OS X

By not assuming that the file system is case insensitive. OSX supports
both.

Change-Id: I11a4ac4cdff97b97b183dd319757a42ae14bb52d
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>