Finish parser
Finish parser
Merge branch 'master' of https://github.com/neha01mittal/HRRN

Conflicts:
	src/sg/edu/nus/comp/cs4218/impl/.DS_Store
	src/sg/edu/nus/comp/cs4218/impl/Shell.java
	test/.DS_Store
	test/sg/.DS_Store
	test/sg/edu/.DS_Store
	test/sg/edu/nus/.DS_Store
	test/sg/edu/nus/comp/.DS_Store
	test/sg/edu/nus/comp/cs4218/.DS_Store
	test/sg/edu/nus/comp/cs4218/impl/.DS_Store
	test/sg/edu/nus/comp/cs4218/impl/ShellTest.java
Improve code quality
Merge branch 'master' of https://github.com/neha01mittal/HRRN

Conflicts:
	src/sg/edu/nus/comp/cs4218/impl/Shell.java
	test/sg/edu/nus/comp/cs4218/impl/fileutils/LsToolTest.java
	test/sg/edu/nus/comp/cs4218/impl/fileutils/MoveToolTest.java