only for tut
added location for parser, updated tests:
- no longer test view calendar
- can now add location with '<' prefix
- case-insensitivity tested for arguments of 'view'
implement test part
update updateCommand to reflect changes in API
Merge branch 'parser' into mainlogic

Conflicts:
	src/zombietask/ZombieTaskCommandHandler.java
Merge branch 'ZombieStorage' into mainlogic

Conflicts:
	src/storage/StorageAPI.java
	src/tests/StorageAPITest.java
	src/zombietask/ZombieTaskCommandHandler.java