Add readFile() into every method
add exceptions after adding the readFile();
add second deadline(deadline2) for Task Class
update the Task Class to two deadlines and getters, setters and has()
methods are added.   
storageAPI can solve comparison without date. search(calendar,calendar)
has been updated.
Merge branch 'parser'

Merged to include new functions from parser

Conflicts:
	ZombieStorage.txt
Update structure of project to differentiate modules via packages.
Added GSON.jar to storageapi
Updated Structure of Storage API
- Move to GSON
- Simplification of function
- Rectification of Read File
unstable version

- added logger class
- edited ZombieTaskAtd to have sane tests.