Merge pull request #2 from grizzly-studios/f_edit-makefile

Added -f option to rm in clean call. Stops errors while trying to clean ...
still getting used to this
Merge branch 'develop' of https://github.com/grizzly-studios/Space-Evaders into develop
Revert "still getting used to this"

This reverts commit daa63b7e48e89e541f1172b05ce4cf2ebd2adb10.
Revert "Revert "still getting used to this""

This reverts commit 48e242e3455fe9616525c4f70d8a932ea916e9b7.
Merge branch 'f_edit-makefile'