Editing the path separator for different os
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Merge branch 'master' of https://github.com/antezek/CS4218

Conflicts:
	bin/sg/edu/nus/comp/cs4218/impl/extended2/COMMToolTest.class
	bin/sg/edu/nus/comp/cs4218/impl/extended2/CUTTool.class
	bin/sg/edu/nus/comp/cs4218/impl/extended2/CUTToolTest.class
	bin/sg/edu/nus/comp/cs4218/impl/extended2/PASTETool.class
	bin/sg/edu/nus/comp/cs4218/impl/extended2/PASTEToolTest.class
	bin/sg/edu/nus/comp/cs4218/impl/extended2/UNIQTool.class
	bin/sg/edu/nus/comp/cs4218/impl/extended2/UNIQToolTest.class